diff --git a/HomeCafeRecipes/HomeCafeRecipes/Data/Network/CheckNicknameService.swift b/HomeCafeRecipes/HomeCafeRecipes/Data/Network/CheckNicknameService.swift
new file mode 100644
index 0000000..de468e9
--- /dev/null
+++ b/HomeCafeRecipes/HomeCafeRecipes/Data/Network/CheckNicknameService.swift
@@ -0,0 +1,49 @@
+//
+//  CheckNicknameService.swift
+//  HomeCafeRecipes
+//
+//  Created by 김건호 on 1/6/25.
+//
+
+import Foundation
+
+import RxSwift
+
+protocol CheckNicknameService {
+    func checkNickname(nickname: String) -> Single<Bool>
+}
+
+final class CheckNicknameServiceImpl: CheckNicknameService {
+    private let network : BaseNetworkService
+    
+    init(network: BaseNetworkService) {
+        self.network = network
+    }
+    
+    private func makeURL(ednpoint: String) -> URL {
+        return APIConfig().baseURL.appendingPathComponent(ednpoint)
+    }
+    
+    func checkNickname(nickname: String) -> Single<Bool> {
+        var components = URLComponents(url: makeURL(ednpoint: "verification/checkNickname"), resolvingAgainstBaseURL: false)
+        components?.queryItems = [
+            URLQueryItem(name: "nickname", value: nickname),
+        ]
+        
+        guard let urlWithQuery = components?.url else {
+            return Single.error(NSError(domain: "Invalid URL", code: -1, userInfo: nil))
+        }
+        
+        return network.getRequest(
+            url: urlWithQuery,
+            responseType: NetworkResponseDTO<CheckNicknameDTO>.self
+        )
+        .map { $0.data.isDuplicate }
+        .do(onSuccess: { isDuplicate in
+            print("Is Duplicate: \(isDuplicate)")
+            print(nickname)
+        }, onError: { error in
+            print("Error occurred: \(error.localizedDescription)")
+        })
+    }
+}
diff --git a/HomeCafeRecipes/HomeCafeRecipes/Data/Network/DTO/CheckNicknameDTO.swift b/HomeCafeRecipes/HomeCafeRecipes/Data/Network/DTO/CheckNicknameDTO.swift
new file mode 100644
index 0000000..d76ff31
--- /dev/null
+++ b/HomeCafeRecipes/HomeCafeRecipes/Data/Network/DTO/CheckNicknameDTO.swift
@@ -0,0 +1,12 @@
+//
+//  CheckNicknameDTO.swift
+//  HomeCafeRecipes
+//
+//  Created by 김건호 on 1/6/25.
+//
+
+import Foundation
+
+struct CheckNicknameDTO: Decodable {
+    let isDuplicate: Bool
+}
diff --git a/HomeCafeRecipes/HomeCafeRecipes/Data/Repositories/CheckNicknameRepository.swift b/HomeCafeRecipes/HomeCafeRecipes/Data/Repositories/CheckNicknameRepository.swift
new file mode 100644
index 0000000..4173689
--- /dev/null
+++ b/HomeCafeRecipes/HomeCafeRecipes/Data/Repositories/CheckNicknameRepository.swift
@@ -0,0 +1,25 @@
+//
+//  CheckNicknameRepository.swift
+//  HomeCafeRecipes
+//
+//  Created by 김건호 on 1/6/25.
+//
+
+import RxSwift
+
+protocol CheckNicknameRepository {
+    func checkNicknameAvailability(nickname: String) -> Single<Bool>
+}
+
+// Repository Implementation
+final class CheckNicknameRepositoryImpl: CheckNicknameRepository {
+    private let service: CheckNicknameService
+    
+    init(service: CheckNicknameService) {
+        self.service = service
+    }
+    
+    func checkNicknameAvailability(nickname: String) -> Single<Bool> {
+        return service.checkNickname(nickname: nickname)
+    }
+}