diff --git a/src/main/java/kr/re/etri/security/jwt/controllers/ProjectController.java b/src/main/java/kr/re/etri/security/jwt/controllers/ProjectController.java
index 8a5141a..61011e9 100644
--- a/src/main/java/kr/re/etri/security/jwt/controllers/ProjectController.java
+++ b/src/main/java/kr/re/etri/security/jwt/controllers/ProjectController.java
@@ -12,6 +12,7 @@ import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.data.domain.Page;
+import org.springframework.web.bind.annotation.ModelAttribute;
 
 import java.util.List;
 
@@ -28,6 +29,7 @@ public class ProjectController {
     public ResponseEntity<List<ProjectEntity>> getAllProjects() {
         return ResponseEntity.ok(projectService.findAll());
     }
+
     @Operation(summary = "ID로 프로젝트 조회")
     @GetMapping("/{id}")
     public ResponseEntity<ProjectEntity> getProjectById(
@@ -41,7 +43,8 @@ public class ProjectController {
 
     @Operation(summary = "검색 및 페이지네이션 프로젝트 목록 조회")
     @GetMapping("/search")
-    public ResponseEntity<Page<ProjectEntity>> searchProjects(BaseSearchRequest request) {
+    public ResponseEntity<Page<ProjectEntity>> searchProjects(
+            @ModelAttribute BaseSearchRequest request) {
         Page<ProjectEntity> page = projectService.search(request);
         return ResponseEntity.ok(page);
     }
@@ -69,7 +72,6 @@ public class ProjectController {
                 .orElse(ResponseEntity.notFound().build());
     }
 
-
     @Operation(summary = "프로젝트 삭제")
     @DeleteMapping("/{id}")
     public ResponseEntity<Void> deleteProject(
diff --git a/src/main/java/kr/re/etri/security/jwt/entity/ProjectEntity.java b/src/main/java/kr/re/etri/security/jwt/entity/ProjectEntity.java
index 3f61388..a7e5c1d 100644
--- a/src/main/java/kr/re/etri/security/jwt/entity/ProjectEntity.java
+++ b/src/main/java/kr/re/etri/security/jwt/entity/ProjectEntity.java
@@ -7,6 +7,8 @@ import org.hibernate.annotations.Comment;
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.data.annotation.LastModifiedDate;
 
+import java.time.LocalDate;
+
 @Schema(description = "프로젝트")
 @Comment("프로젝트")
 @Entity
@@ -39,11 +41,11 @@ public class ProjectEntity {
 
     @Schema(description = "프로젝트 시작일", example = "2025-08-01")
     @Comment("프로젝트 시작일")
-    private String prjStartDt;
+    private LocalDate prjStartDt;
 
     @Schema(description = "프로젝트 종료일", example = "2025-12-31")
     @Comment("프로젝트 종료일")
-    private String prjEndDt;
+    private LocalDate  prjEndDt;
 
     @Schema(description = "삭제 여부", example = "N")
     @Comment("삭제 여부")
diff --git a/src/main/java/kr/re/etri/security/jwt/payload/request/BaseSearchRequest.java b/src/main/java/kr/re/etri/security/jwt/payload/request/BaseSearchRequest.java
index bfc7f59..6e235b6 100644
--- a/src/main/java/kr/re/etri/security/jwt/payload/request/BaseSearchRequest.java
+++ b/src/main/java/kr/re/etri/security/jwt/payload/request/BaseSearchRequest.java
@@ -3,6 +3,7 @@ package kr.re.etri.security.jwt.payload.request;
 import lombok.Getter;
 import lombok.Setter;
 import org.springframework.format.annotation.DateTimeFormat;
+import io.swagger.v3.oas.annotations.media.Schema;
 
 import java.time.LocalDate;
 
@@ -10,19 +11,27 @@ import java.time.LocalDate;
 @Setter
 public class BaseSearchRequest {
 
-    private int page = 0;              // 페이지 번호 (0부터 시작)
-    private int size = 10;             // 한 페이지당 출력 건수
+    @Schema(description = "페이지 번호 (0부터 시작)", defaultValue = "0")
+    private int page = 0;
 
-    private String keyword;            // 공통 키워드 검색
+    @Schema(description = "한 페이지당 출력 건수", defaultValue = "10")
+    private int size = 10;
 
-    private String searchType;        // 검색 유형 (예: "전체", "제목", "작성자" 등)
+    @Schema(description = "공통 키워드 검색")
+    private String keyword;
 
-    @DateTimeFormat(iso = DateTimeFormat.ISO.DATE)
-    private LocalDate startDate;       // 등록일자 검색 시작
+    @Schema(description = "검색 유형 (예: 전체, 제목, 작성자 등)", example = "전체")
+    private String searchType;
 
-    @DateTimeFormat(iso = DateTimeFormat.ISO.DATE)
-    private LocalDate endDate;         // 등록일자 검색 종료
+    @Schema(description = "등록일자 검색 시작", example = "2025-08-01")
+    private String startDate;
 
-    private String sortField = "id";   // 정렬 기준 필드명
-    private String sortDirection = "DESC"; // 정렬 방향: ASC / DESC
-}
+    @Schema(description = "등록일자 검색 종료", example = "2025-08-31")
+    private String endDate;
+
+    @Schema(description = "정렬 기준 필드명", defaultValue = "id", example = "id")
+    private String sortField = "id";
+
+    @Schema(description = "정렬 방향: ASC / DESC", defaultValue = "DESC", allowableValues = {"ASC", "DESC"})
+    private String sortDirection = "DESC";
+}
\ No newline at end of file
diff --git a/src/main/java/kr/re/etri/security/jwt/repository/ProjectRepository.java b/src/main/java/kr/re/etri/security/jwt/repository/ProjectRepository.java
index 0145c9f..ac1e7d5 100644
--- a/src/main/java/kr/re/etri/security/jwt/repository/ProjectRepository.java
+++ b/src/main/java/kr/re/etri/security/jwt/repository/ProjectRepository.java
@@ -4,8 +4,9 @@ import kr.re.etri.security.jwt.entity.ProjectEntity;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
 
-public interface ProjectRepository extends JpaRepository<ProjectEntity, Long> {
+public interface ProjectRepository extends JpaRepository<ProjectEntity, Long>, JpaSpecificationExecutor<ProjectEntity> {
     boolean existsByPrjCd(String prjCd);
 
     Page<ProjectEntity> findByPrjNmContainingIgnoreCase(String keyword, Pageable pageable);
diff --git a/src/main/java/kr/re/etri/security/jwt/service/ProjectService.java b/src/main/java/kr/re/etri/security/jwt/service/ProjectService.java
index 76e8187..391e0d3 100644
--- a/src/main/java/kr/re/etri/security/jwt/service/ProjectService.java
+++ b/src/main/java/kr/re/etri/security/jwt/service/ProjectService.java
@@ -4,12 +4,17 @@ import kr.re.etri.security.jwt.entity.ProjectEntity;
 import kr.re.etri.security.jwt.payload.request.BaseSearchRequest;
 import kr.re.etri.security.jwt.payload.request.ProjectRequest;
 import kr.re.etri.security.jwt.repository.ProjectRepository;
+import kr.re.etri.security.jwt.specification.ProjectSpecification;
 import lombok.RequiredArgsConstructor;
 import org.springframework.beans.BeanUtils;
 import org.springframework.data.domain.*;
+import org.springframework.data.jpa.domain.Specification;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
 import java.util.List;
 import java.util.Optional;
 
@@ -19,6 +24,7 @@ import java.util.Optional;
 public class ProjectService {
 
     private final ProjectRepository projectRepository;
+    private final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
 
     public List<ProjectEntity> findAll() {
         return projectRepository.findAll();
@@ -35,10 +41,26 @@ public class ProjectService {
                 Sort.by(Sort.Direction.fromString(request.getSortDirection()), request.getSortField())
         );
 
-        if (request.getKeyword() != null && !request.getKeyword().isEmpty()) {
-            return projectRepository.findByPrjNmContainingIgnoreCase(request.getKeyword(), pageable);
-        } else {
-            return projectRepository.findAll(pageable);
+        // String -> LocalDate 변환
+        LocalDate startDate = parseDate(request.getStartDate());
+        LocalDate endDate = parseDate(request.getEndDate());
+
+        Specification<ProjectEntity> spec = ProjectSpecification.searchByConditions(
+                request.getSearchType(),
+                request.getKeyword(),
+                startDate,
+                endDate
+        );
+
+        return projectRepository.findAll(spec, pageable);
+    }
+
+    private LocalDate parseDate(String dateStr) {
+        if (dateStr == null || dateStr.isBlank()) return null;
+        try {
+            return LocalDate.parse(dateStr, formatter);
+        } catch (DateTimeParseException e) {
+            throw new IllegalArgumentException("날짜 형식이 잘못되었습니다. yyyy-MM-dd 형식이어야 합니다: " + dateStr);
         }
     }
 
diff --git a/src/main/java/kr/re/etri/security/jwt/specification/ProjectSpecification.java b/src/main/java/kr/re/etri/security/jwt/specification/ProjectSpecification.java
new file mode 100644
index 0000000..a02e6e6
--- /dev/null
+++ b/src/main/java/kr/re/etri/security/jwt/specification/ProjectSpecification.java
@@ -0,0 +1,51 @@
+package kr.re.etri.security.jwt.specification;
+
+import jakarta.persistence.criteria.Path;
+import jakarta.persistence.criteria.Predicate;
+import kr.re.etri.security.jwt.entity.ProjectEntity;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.data.jpa.domain.Specification;
+import java.time.LocalDate;
+import java.util.Set;
+
+@Slf4j
+public class ProjectSpecification {
+
+    public static Specification<ProjectEntity> searchByConditions(
+            String searchType, String keyword,
+            LocalDate startDate, LocalDate endDate) {
+
+        return (root, query, cb) -> {
+            Predicate predicate = cb.conjunction();
+
+            // 문자열 필드만 지정 (날짜 필드 제외)
+            Set<String> stringFields = Set.of("prjNm", "prjDesc", "delYn");
+
+            if (keyword != null && !keyword.isEmpty()) {
+                if ("전체".equalsIgnoreCase(searchType) || "all".equalsIgnoreCase(searchType)) {
+                    predicate = cb.and(predicate, cb.or(
+                            cb.like(cb.lower(root.get("prjNm")), "%" + keyword.toLowerCase() + "%"),
+                            cb.like(cb.lower(root.get("prjDesc")), "%" + keyword.toLowerCase() + "%"),
+                            cb.like(cb.lower(root.get("delYn")), "%" + keyword.toLowerCase() + "%")
+                    ));
+                } else if (stringFields.contains(searchType)) {
+                    predicate = cb.and(predicate,
+                            cb.like(cb.lower(root.get(searchType)), "%" + keyword.toLowerCase() + "%"));
+                }
+                // searchType이 날짜 컬럼이면 keyword 검색 안함
+            }
+
+            if (startDate != null) {
+                predicate = cb.and(predicate,
+                        cb.greaterThanOrEqualTo(root.get("prjStartDt"), startDate));
+            }
+
+            if (endDate != null) {
+                predicate = cb.and(predicate,
+                        cb.lessThanOrEqualTo(root.get("prjEndDt"), endDate));
+            }
+
+            return predicate;
+        };
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 807a35a..bae3b50 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -3,7 +3,7 @@ spring.datasource.username=cuuva
 spring.datasource.password=cuuva
 
 spring.jpa.database-platform=org.hibernate.dialect.MariaDBDialect
-spring.jpa.hibernate.ddl-auto= create-drop
+spring.jpa.hibernate.ddl-auto=create-only
 
 spring.sql.init.mode=always
 
diff --git a/src/main/resources/data.sql b/src/main/resources/data.sql
index 14e282c..3a4d598 100644
--- a/src/main/resources/data.sql
+++ b/src/main/resources/data.sql
@@ -1,5 +1,5 @@
 -- src/main/resources/data.sql
 
-INSERT INTO tb_role (id, name) VALUES (1, 'ROLE_USER');
-INSERT INTO tb_role (id, name) VALUES (2, 'ROLE_MODERATOR');
-INSERT INTO tb_role (id, name) VALUES (3, 'ROLE_ADMIN');
+# INSERT INTO tb_role (id, name) VALUES (1, 'ROLE_USER');
+# INSERT INTO tb_role (id, name) VALUES (2, 'ROLE_MODERATOR');
+# INSERT INTO tb_role (id, name) VALUES (3, 'ROLE_ADMIN');