diff --git a/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/controller/ApplicantController.kt b/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/controller/ApplicantController.kt
new file mode 100644
index 0000000..1a57db1
--- /dev/null
+++ b/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/controller/ApplicantController.kt
@@ -0,0 +1,33 @@
+package com.byebye.chapterTwo.domain.applicant.controller
+
+import com.byebye.chapterTwo.domain.applicant.entity.ApplicantEntity
+import com.byebye.chapterTwo.domain.applicant.service.ApplicantService
+import com.byebye.chapterTwo.global.common.BaseResponse
+import org.springframework.web.bind.annotation.*
+
+@RestController
+@RequestMapping("/applicant")
+class ApplicantController (
+    private val applicantService: ApplicantService
+){
+    @PostMapping("/{id}")
+    fun applicant(@PathVariable id: Long) : BaseResponse<String> {
+        return applicantService.applicant(id)
+    }
+
+    @GetMapping("/{id}")
+    fun getApplicantById(@PathVariable id: Long): BaseResponse<List<ApplicantEntity>> {
+        return applicantService.myApplicantsById(id)
+    }
+
+    @GetMapping("/my/{id}")
+    fun getApplicantByName(): BaseResponse<List<ApplicantEntity>> {
+        return applicantService.myApplicantsByName()
+    }
+
+    @GetMapping("/all")
+    fun getAllApplicants(): BaseResponse<List<ApplicantEntity>> {
+        return applicantService.getApplicants()
+    }
+
+}
\ No newline at end of file
diff --git a/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/dto/Applicant.kt b/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/dto/Applicant.kt
new file mode 100644
index 0000000..b11268f
--- /dev/null
+++ b/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/dto/Applicant.kt
@@ -0,0 +1,13 @@
+package com.byebye.chapterTwo.domain.applicant.dto
+
+data class Applicant(
+    val id : Long? = null,
+    val gooinId: Long,
+    val userName : String,
+){
+    constructor(id:Long, userName: String) : this(
+        id = null?:0,
+        gooinId = id,
+        userName = userName
+    )
+}
diff --git a/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/entity/ApplicantEntity.kt b/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/entity/ApplicantEntity.kt
new file mode 100644
index 0000000..e42774a
--- /dev/null
+++ b/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/entity/ApplicantEntity.kt
@@ -0,0 +1,15 @@
+package com.byebye.chapterTwo.domain.applicant.entity
+
+import jakarta.persistence.Entity
+import jakarta.persistence.GeneratedValue
+import jakarta.persistence.GenerationType
+import jakarta.persistence.Id
+
+@Entity
+class ApplicantEntity (
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    val id : Long? = null,
+    var gooinId : Long,
+    var userName: String,
+    )
\ No newline at end of file
diff --git a/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/exception/ApplicantErrorCode.kt b/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/exception/ApplicantErrorCode.kt
new file mode 100644
index 0000000..2221fc6
--- /dev/null
+++ b/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/exception/ApplicantErrorCode.kt
@@ -0,0 +1,14 @@
+package com.byebye.chapterTwo.domain.applicant.exception
+
+import com.byebye.chapterTwo.global.auth.exception.CustomErrorCode
+import org.springframework.http.HttpStatus
+
+enum class ApplicantErrorCode (
+    override val status: HttpStatus,
+    override val message: String,
+) : CustomErrorCode {
+
+    APPLICANT_NOT_FOUND(HttpStatus.NOT_FOUND,  "신청하고 싶은 구인 요청을 찾을 수 없습니다"),
+    BUSINESS_ALREADY_EXIST(HttpStatus.CONFLICT,  "이미 신청했습니다")
+
+}
\ No newline at end of file
diff --git a/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/repository/ApplicantRepository.kt b/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/repository/ApplicantRepository.kt
new file mode 100644
index 0000000..7b56dc7
--- /dev/null
+++ b/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/repository/ApplicantRepository.kt
@@ -0,0 +1,9 @@
+package com.byebye.chapterTwo.domain.applicant.repository
+
+import com.byebye.chapterTwo.domain.applicant.entity.ApplicantEntity
+import org.springframework.data.jpa.repository.JpaRepository
+
+interface ApplicantRepository : JpaRepository<ApplicantEntity,Long> {
+    fun findAllByUserName(username: String): List<ApplicantEntity>
+    fun findAllByGooinId(id: Long): List<ApplicantEntity>
+}
\ No newline at end of file
diff --git a/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/service/ApplicantService.kt b/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/service/ApplicantService.kt
new file mode 100644
index 0000000..637f74e
--- /dev/null
+++ b/src/main/kotlin/com/byebye/chapterTwo/domain/applicant/service/ApplicantService.kt
@@ -0,0 +1,45 @@
+package com.byebye.chapterTwo.domain.applicant.service
+
+import com.byebye.chapterTwo.domain.applicant.entity.ApplicantEntity
+import com.byebye.chapterTwo.domain.applicant.repository.ApplicantRepository
+import com.byebye.chapterTwo.global.auth.jwt.JwtUtils
+import com.byebye.chapterTwo.global.common.BaseResponse
+import org.springframework.stereotype.Service
+
+@Service
+class ApplicantService(
+    private val applicantRepository: ApplicantRepository,
+    private val jwtUtils: JwtUtils
+) {
+    fun applicant(id: Long): BaseResponse<String>{
+        applicantRepository.save(ApplicantEntity(
+            id = null,
+            gooinId = id,
+            userName = jwtUtils.getMember().name
+        ))
+        return BaseResponse(
+            message = "지원 성공"
+        )
+    }
+
+    fun getApplicants(): BaseResponse<List<ApplicantEntity>> {
+        return BaseResponse(
+            message = "조회 성공",
+            data = applicantRepository.findAll()
+        )
+    }
+
+    fun myApplicantsByName() : BaseResponse<List<ApplicantEntity>> {
+        return BaseResponse(
+            message = "조회 성공",
+            data = applicantRepository.findAllByUserName(jwtUtils.getMember().name)
+        )
+    }
+
+    fun myApplicantsById(id: Long) : BaseResponse<List<ApplicantEntity>> {
+        return BaseResponse(
+            message = "조회 성공",
+            data = applicantRepository.findAllByGooinId(id)
+        )
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/com/byebye/chapterTwo/domain/business/exception/BusinessErrorCode.kt b/src/main/kotlin/com/byebye/chapterTwo/domain/business/exception/BusinessErrorCode.kt
index 2183ca1..4005320 100644
--- a/src/main/kotlin/com/byebye/chapterTwo/domain/business/exception/BusinessErrorCode.kt
+++ b/src/main/kotlin/com/byebye/chapterTwo/domain/business/exception/BusinessErrorCode.kt
@@ -8,7 +8,6 @@ enum class BusinessErrorCode  (
     override val message: String,
 ) : CustomErrorCode {
 
-    BUSINESS_NOT_FOUND(HttpStatus.NOT_FOUND,  "신청하고 싶은 구인 요청을 찾을 수 없습니다"),
-    BUSINESS_ALREADY_EXIST(HttpStatus.CONFLICT,  "이미 신청했습니다")
+    BUSINESS_NOT_FOUND(HttpStatus.NOT_FOUND,  "해당 회사를 찾을 수 없습니다")
 
 }
\ No newline at end of file