diff --git a/src/main/kotlin/com/hero/alignlab/domain/auth/application/OAuthFacade.kt b/src/main/kotlin/com/hero/alignlab/domain/auth/application/OAuthFacade.kt
index c36ce36..c2dc7d4 100644
--- a/src/main/kotlin/com/hero/alignlab/domain/auth/application/OAuthFacade.kt
+++ b/src/main/kotlin/com/hero/alignlab/domain/auth/application/OAuthFacade.kt
@@ -1,11 +1,17 @@
 package com.hero.alignlab.domain.auth.application
 
+import com.hero.alignlab.common.extension.executes
+import com.hero.alignlab.config.database.TransactionTemplates
 import com.hero.alignlab.domain.auth.model.OAuthProvider
-import com.hero.alignlab.domain.auth.model.request.OAuthLoginRequest
+import com.hero.alignlab.domain.auth.model.request.OAuthSignInRequest
+import com.hero.alignlab.domain.auth.model.request.OAuthSignUpRequest
 import com.hero.alignlab.domain.auth.model.response.OAuthCheckSignUpResponse
-import com.hero.alignlab.domain.auth.model.response.OAuthLoginResponse
+import com.hero.alignlab.domain.auth.model.response.OAuthSignInResponse
+import com.hero.alignlab.domain.auth.model.response.OAuthSignUpResponse
 import com.hero.alignlab.domain.user.application.OAuthUserInfoService
 import com.hero.alignlab.domain.user.application.UserInfoService
+import com.hero.alignlab.domain.user.domain.OAuthUserInfo
+import com.hero.alignlab.domain.user.domain.UserInfo
 import io.github.oshai.kotlinlogging.KotlinLogging
 import org.springframework.stereotype.Service
 import java.time.LocalDateTime
@@ -16,6 +22,7 @@ class OAuthFacade(
     private val oAuthUserInfoService: OAuthUserInfoService,
     private val userInfoService: UserInfoService,
     private val jwtTokenService: JwtTokenService,
+    private val txTemplates: TransactionTemplates,
 ) {
     companion object {
         private val TOKEN_EXPIRED_DATE = LocalDateTime.of(2024, 12, 29, 0, 0, 0)
@@ -31,14 +38,47 @@ class OAuthFacade(
         return OAuthCheckSignUpResponse(isExists)
     }
 
-    suspend fun signIn(provider: OAuthProvider, request: OAuthLoginRequest): OAuthLoginResponse? {
+    suspend fun signIn(provider: OAuthProvider, request: OAuthSignInRequest): OAuthSignInResponse? {
         val oauthInfo = oAuthService.getOAuthInfo(provider, request.accessToken)
 
         val userInfo = userInfoService.findByOAuthOrThrow(provider.toProvider(), oauthInfo.oauthId)
 
         val token = jwtTokenService.createToken(userInfo.id, TOKEN_EXPIRED_DATE)
 
-        return OAuthLoginResponse(
+        return OAuthSignInResponse(
+            uid = userInfo.id,
+            nickname = userInfo.nickname,
+            accessToken = token
+        )
+    }
+
+    suspend fun signUp(provider: OAuthProvider, request: OAuthSignUpRequest): OAuthSignUpResponse {
+        val oauthInfo = oAuthService.getOAuthInfo(provider, request.accessToken)
+
+        val isExists = oAuthUserInfoService.existsByOauthIdAndProvider(oauthInfo.oauthId, provider.toProvider())
+
+        val userInfo = when (isExists) {
+            true -> userInfoService.findByOAuthOrThrow(provider.toProvider(), oauthInfo.oauthId)
+            false -> {
+                txTemplates.writer.executes {
+                    val createdUser = userInfoService.saveSync(UserInfo(nickname = oauthInfo.nickname))
+
+                    oAuthUserInfoService.saveSync(
+                        OAuthUserInfo(
+                            uid = createdUser.id,
+                            provider = provider.toProvider(),
+                            oauthId = oauthInfo.oauthId
+                        )
+                    )
+
+                    createdUser
+                }
+            }
+        }
+
+        val token = jwtTokenService.createToken(userInfo.id, TOKEN_EXPIRED_DATE)
+
+        return OAuthSignUpResponse(
             uid = userInfo.id,
             nickname = userInfo.nickname,
             accessToken = token
diff --git a/src/main/kotlin/com/hero/alignlab/domain/auth/model/request/OAuthLoginRequest.kt b/src/main/kotlin/com/hero/alignlab/domain/auth/model/request/OAuthSignInRequest.kt
similarity index 58%
rename from src/main/kotlin/com/hero/alignlab/domain/auth/model/request/OAuthLoginRequest.kt
rename to src/main/kotlin/com/hero/alignlab/domain/auth/model/request/OAuthSignInRequest.kt
index 7bbe95a..b31f4ea 100644
--- a/src/main/kotlin/com/hero/alignlab/domain/auth/model/request/OAuthLoginRequest.kt
+++ b/src/main/kotlin/com/hero/alignlab/domain/auth/model/request/OAuthSignInRequest.kt
@@ -1,5 +1,6 @@
 package com.hero.alignlab.domain.auth.model.request
 
-data class OAuthLoginRequest(
+data class OAuthSignInRequest(
+    /** oauth accessToken */
     val accessToken: String
 )
diff --git a/src/main/kotlin/com/hero/alignlab/domain/auth/model/request/OAuthSignUpRequest.kt b/src/main/kotlin/com/hero/alignlab/domain/auth/model/request/OAuthSignUpRequest.kt
new file mode 100644
index 0000000..d57be96
--- /dev/null
+++ b/src/main/kotlin/com/hero/alignlab/domain/auth/model/request/OAuthSignUpRequest.kt
@@ -0,0 +1,6 @@
+package com.hero.alignlab.domain.auth.model.request
+
+data class OAuthSignUpRequest(
+    /** oauth accessToken */
+    val accessToken: String,
+)
diff --git a/src/main/kotlin/com/hero/alignlab/domain/auth/model/response/OAuthLoginResponse.kt b/src/main/kotlin/com/hero/alignlab/domain/auth/model/response/OAuthSignInResponse.kt
similarity index 83%
rename from src/main/kotlin/com/hero/alignlab/domain/auth/model/response/OAuthLoginResponse.kt
rename to src/main/kotlin/com/hero/alignlab/domain/auth/model/response/OAuthSignInResponse.kt
index 8910fa5..af888a5 100644
--- a/src/main/kotlin/com/hero/alignlab/domain/auth/model/response/OAuthLoginResponse.kt
+++ b/src/main/kotlin/com/hero/alignlab/domain/auth/model/response/OAuthSignInResponse.kt
@@ -1,6 +1,6 @@
 package com.hero.alignlab.domain.auth.model.response
 
-data class OAuthLoginResponse(
+data class OAuthSignInResponse(
     val uid: Long,
     val nickname: String,
     /** hero access token */
diff --git a/src/main/kotlin/com/hero/alignlab/domain/auth/model/response/OAuthSignUpResponse.kt b/src/main/kotlin/com/hero/alignlab/domain/auth/model/response/OAuthSignUpResponse.kt
new file mode 100644
index 0000000..24e8fa5
--- /dev/null
+++ b/src/main/kotlin/com/hero/alignlab/domain/auth/model/response/OAuthSignUpResponse.kt
@@ -0,0 +1,8 @@
+package com.hero.alignlab.domain.auth.model.response
+
+data class OAuthSignUpResponse(
+    val uid: Long,
+    val nickname: String,
+    /** hero access token */
+    val accessToken: String,
+)
diff --git a/src/main/kotlin/com/hero/alignlab/domain/auth/resource/OAuthResource.kt b/src/main/kotlin/com/hero/alignlab/domain/auth/resource/OAuthResource.kt
index 9bd3958..a22c5c0 100644
--- a/src/main/kotlin/com/hero/alignlab/domain/auth/resource/OAuthResource.kt
+++ b/src/main/kotlin/com/hero/alignlab/domain/auth/resource/OAuthResource.kt
@@ -1,9 +1,11 @@
 package com.hero.alignlab.domain.auth.resource
 
+import com.hero.alignlab.common.extension.wrapCreated
 import com.hero.alignlab.common.extension.wrapOk
 import com.hero.alignlab.domain.auth.application.OAuthFacade
 import com.hero.alignlab.domain.auth.model.OAuthProvider
-import com.hero.alignlab.domain.auth.model.request.OAuthLoginRequest
+import com.hero.alignlab.domain.auth.model.request.OAuthSignInRequest
+import com.hero.alignlab.domain.auth.model.request.OAuthSignUpRequest
 import io.swagger.v3.oas.annotations.Operation
 import io.swagger.v3.oas.annotations.tags.Tag
 import org.springframework.http.MediaType
@@ -29,6 +31,13 @@ class OAuthResource(
     @PostMapping("/api/v1/oauth/{provider}/sign-in")
     suspend fun signIn(
         @PathVariable provider: OAuthProvider,
-        @RequestBody request: OAuthLoginRequest,
+        @RequestBody request: OAuthSignInRequest,
     ) = oAuthFacade.signIn(provider, request).wrapOk()
+
+    @Operation(summary = "회원가입")
+    @PostMapping("/api/v1/oauth/{provider}/sign-up")
+    suspend fun signUp(
+        @PathVariable provider: OAuthProvider,
+        @RequestBody request: OAuthSignUpRequest,
+    ) = oAuthFacade.signUp(provider, request).wrapCreated()
 }