diff --git a/src/main/java/treehouse/server/api/invitation/business/InvitationMapper.java b/src/main/java/treehouse/server/api/invitation/business/InvitationMapper.java
index f48d16f..28b7382 100644
--- a/src/main/java/treehouse/server/api/invitation/business/InvitationMapper.java
+++ b/src/main/java/treehouse/server/api/invitation/business/InvitationMapper.java
@@ -5,10 +5,15 @@
 import org.springframework.stereotype.Component;
 import treehouse.server.api.invitation.presentation.dto.InvitationResponseDTO;
 import treehouse.server.global.entity.Invitation.Invitation;
+import treehouse.server.global.entity.Invitation.InvitationStatus;
 import treehouse.server.global.entity.User.User;
 import treehouse.server.global.entity.User.UserRole;
 import treehouse.server.global.entity.User.UserStatus;
+import treehouse.server.global.entity.member.Member;
+import treehouse.server.global.entity.treeHouse.TreeHouse;
 
+import java.time.LocalDateTime;
+import java.time.temporal.ChronoUnit;
 import java.util.List;
 
 @Component
@@ -43,5 +48,28 @@ public InvitationResponseDTO.invitationAccept toInvitationResult(Long treeHouseI
                 .treehouseId(treeHouseId)
                 .build();
     }
+
+    public Invitation toInvitation(String phoneNumber, Member sender, User receiver, TreeHouse treeHouse){
+
+
+        LocalDateTime now = LocalDateTime.now();
+
+        // 7일 뒤 시간 계산하기
+        LocalDateTime sevenDaysLater = now.plus(7, ChronoUnit.DAYS);
+
+        return Invitation.builder()
+                .sender(sender)
+                .receiver(receiver)
+                .phone(phoneNumber)
+                .expiredAt(sevenDaysLater)
+                .status(InvitationStatus.PENDING)
+                .build();
+    }
+
+    public InvitationResponseDTO.createInvitation toCreateInvitationDTO (Invitation invitation){
+        return InvitationResponseDTO.createInvitation.builder()
+                .invitationId(invitation.getId())
+                .build();
+    }
 }
 
diff --git a/src/main/java/treehouse/server/api/invitation/business/InvitationService.java b/src/main/java/treehouse/server/api/invitation/business/InvitationService.java
index 29b85ec..2ba17e3 100644
--- a/src/main/java/treehouse/server/api/invitation/business/InvitationService.java
+++ b/src/main/java/treehouse/server/api/invitation/business/InvitationService.java
@@ -8,10 +8,14 @@
 import treehouse.server.api.invitation.implement.InvitationQueryAdapter;
 import treehouse.server.api.invitation.presentation.dto.InvitationRequestDTO;
 import treehouse.server.api.invitation.presentation.dto.InvitationResponseDTO;
+import treehouse.server.api.member.implementation.MemberQueryAdapter;
+import treehouse.server.api.treehouse.implementation.TreehouseQueryAdapter;
+import treehouse.server.api.user.implement.UserQueryAdapter;
 import treehouse.server.global.entity.Invitation.Invitation;
 import treehouse.server.global.entity.User.User;
 import treehouse.server.global.entity.member.Member;
 import treehouse.server.global.entity.treeHouse.TreeHouse;
+import treehouse.server.global.exception.ThrowClass.UserException;
 
 import java.util.List;
 import java.util.stream.Collectors;
@@ -26,6 +30,13 @@ public class InvitationService {
 
     private final InvitationCommandAdapter invitationCommandAdapter;
     private final InvitationMapper invitationMapper;
+
+    private final TreehouseQueryAdapter treehouseQueryAdapter;
+
+    private final MemberQueryAdapter memberQueryAdapter;
+
+    private final UserQueryAdapter userQueryAdapter;
+
     private static final Integer treeMemberRandomProfileSize = 3;
 
 
@@ -52,6 +63,32 @@ public InvitationResponseDTO.myInvitationInfo getMyInvitationInfo(User user){
         return invitationMapper.toMyInvitationInfo(user);
     }
 
+    @Transactional
+    public InvitationResponseDTO.createInvitation createInvitation(User user, InvitationRequestDTO.createInvitation request){
+
+        // 트리 찾기
+        TreeHouse treehouse = treehouseQueryAdapter.getTreehouseById(request.getTreehouseId());
+        // 초대 멤버 찾기
+        Member sender = memberQueryAdapter.findByUserAndTreehouse(user, treehouse);
+        // 초대 대상이 가입된 사람인지 찾기
+
+        User receiverUser = null;
+
+        try {
+            receiverUser = userQueryAdapter.findByPhoneNumber(request.getPhoneNumber());
+        }
+        catch (UserException e){
+            // 뭐 안함
+        }
+        // 초대장 만들어서 저장하기
+
+        Invitation invitation = invitationCommandAdapter.saveInvitation(invitationMapper.toInvitation(request.getPhoneNumber(), sender, receiverUser, treehouse));
+
+        // 리턴하기
+
+        return invitationMapper.toCreateInvitationDTO(invitation);
+    }
+
     @Transactional
     public InvitationResponseDTO.invitationAccept decisionInvitation(User user, InvitationRequestDTO.invitationAcceptDecision request){
         // 해당 User 에게 온 초대장인지 검증하는 로직 추가
diff --git a/src/main/java/treehouse/server/api/invitation/implement/InvitationCommandAdapter.java b/src/main/java/treehouse/server/api/invitation/implement/InvitationCommandAdapter.java
index 24f3c30..dc1818c 100644
--- a/src/main/java/treehouse/server/api/invitation/implement/InvitationCommandAdapter.java
+++ b/src/main/java/treehouse/server/api/invitation/implement/InvitationCommandAdapter.java
@@ -5,6 +5,7 @@
 import org.springframework.security.core.authority.SimpleGrantedAuthority;
 import treehouse.server.api.invitation.persistence.InvitationRepository;
 import treehouse.server.global.annotations.Adapter;
+import treehouse.server.global.entity.Invitation.Invitation;
 import treehouse.server.global.entity.User.User;
 import treehouse.server.global.entity.User.UserRole;
 import treehouse.server.global.entity.redis.RefreshToken;
@@ -22,4 +23,8 @@ public class InvitationCommandAdapter {
     private final InvitationRepository invitationRepository;
 
 
+    public Invitation saveInvitation(Invitation invitation){
+        return invitationRepository.save(invitation);
+    }
+
 }
diff --git a/src/main/java/treehouse/server/api/invitation/presentation/InvitationApi.java b/src/main/java/treehouse/server/api/invitation/presentation/InvitationApi.java
index 39b068f..8bb036e 100644
--- a/src/main/java/treehouse/server/api/invitation/presentation/InvitationApi.java
+++ b/src/main/java/treehouse/server/api/invitation/presentation/InvitationApi.java
@@ -46,4 +46,11 @@ public CommonResponse<InvitationResponseDTO.invitationAccept> acceptInvitation(
         return CommonResponse.onSuccess(invitationService.decisionInvitation(user, request));
     }
 
+    @PostMapping("/invitation")
+    @Operation(summary = "초대하기 API \uD83D\uDD11✅ 🔑", description = "초대하기 API 입니다. 초대 후 문자나 카카오톡 보내는 것과 별개로 API 호출 부탁드립니닷")
+    public CommonResponse<InvitationResponseDTO.createInvitation> createInvitation(
+        @AuthMember @Parameter(hidden = true)User user, @RequestBody InvitationRequestDTO.createInvitation request
+    ){
+        return CommonResponse.onSuccess(invitationService.createInvitation(user,request));
+    }
 }
diff --git a/src/main/java/treehouse/server/api/invitation/presentation/dto/InvitationRequestDTO.java b/src/main/java/treehouse/server/api/invitation/presentation/dto/InvitationRequestDTO.java
index 0e51853..33574ae 100644
--- a/src/main/java/treehouse/server/api/invitation/presentation/dto/InvitationRequestDTO.java
+++ b/src/main/java/treehouse/server/api/invitation/presentation/dto/InvitationRequestDTO.java
@@ -2,7 +2,7 @@
 
 import lombok.*;
 
-
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
 public class InvitationRequestDTO {
 
     @Getter
@@ -13,5 +13,13 @@ public static class invitationAcceptDecision{
 
     }
 
+    @Getter
+    @NoArgsConstructor
+    public static class createInvitation{
+        private Long senderId;
+        private String phoneNumber;
+        private Long treehouseId;
+    }
+
 
 }
diff --git a/src/main/java/treehouse/server/api/invitation/presentation/dto/InvitationResponseDTO.java b/src/main/java/treehouse/server/api/invitation/presentation/dto/InvitationResponseDTO.java
index 717db23..a973a18 100644
--- a/src/main/java/treehouse/server/api/invitation/presentation/dto/InvitationResponseDTO.java
+++ b/src/main/java/treehouse/server/api/invitation/presentation/dto/InvitationResponseDTO.java
@@ -45,4 +45,12 @@ public static class invitationAccept {
         private Long treehouseId;
 
     }
+
+    @Builder
+    @Getter
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class createInvitation{
+        private Long invitationId;
+    }
 }
diff --git a/src/main/java/treehouse/server/api/member/persistence/MemberRepository.java b/src/main/java/treehouse/server/api/member/persistence/MemberRepository.java
index 86296fa..6d4d543 100644
--- a/src/main/java/treehouse/server/api/member/persistence/MemberRepository.java
+++ b/src/main/java/treehouse/server/api/member/persistence/MemberRepository.java
@@ -9,7 +9,7 @@
 
 public interface MemberRepository extends JpaRepository<Member, Long> {
 
-    public Optional<Member> findByUser(User user);
+    Optional<Member> findByUser(User user);
 
     Optional<Member> findByUserAndTreeHouse(User user, TreeHouse treehouse);
 }