diff --git a/src/main/java/com/loafle/overflow/module/member/exception/JoinedEmailException.java b/src/main/java/com/loafle/overflow/module/member/exception/JoinedEmailException.java
new file mode 100644
index 0000000..76162d7
--- /dev/null
+++ b/src/main/java/com/loafle/overflow/module/member/exception/JoinedEmailException.java
@@ -0,0 +1,16 @@
+package com.loafle.overflow.module.member.exception;
+
+import com.loafle.overflow.commons.exception.OverflowRuntimeException;
+
+/**
+ * Created by geek on 17. 8. 18.
+ */
+public class JoinedEmailException  extends OverflowRuntimeException {
+    public JoinedEmailException() {
+        super();
+    }
+
+    public JoinedEmailException(String message) {
+        super(message);
+    }
+}
diff --git a/src/main/java/com/loafle/overflow/module/member/service/MemberService.java b/src/main/java/com/loafle/overflow/module/member/service/MemberService.java
index 3324d2b..5f0ec1a 100644
--- a/src/main/java/com/loafle/overflow/module/member/service/MemberService.java
+++ b/src/main/java/com/loafle/overflow/module/member/service/MemberService.java
@@ -3,6 +3,7 @@ package com.loafle.overflow.module.member.service;
 import com.loafle.overflow.module.email.service.EmailAuthService;
 import com.loafle.overflow.module.member.dao.MemberDAO;
 import com.loafle.overflow.module.member.exception.EmailNotConfirmedException;
+import com.loafle.overflow.module.member.exception.JoinedEmailException;
 import com.loafle.overflow.module.member.exception.SignInIdNotExistException;
 import com.loafle.overflow.module.member.exception.SignInPwNotMatchException;
 import com.loafle.overflow.module.member.model.Member;
@@ -45,6 +46,12 @@ public class MemberService {
 
     public Member signup(Member member) {
 
+        Member isMember = this.memberDAO.findByEmail(member.getEmail());
+
+        if (null != isMember && isMember.getId() > 0) {
+            throw new JoinedEmailException();
+        }
+
         BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
         member.setPw(passwordEncoder.encode(member.getPw()));
 
diff --git a/src/main/java/com/loafle/overflow/module/noauthprobe/service/NoAuthProbeService.java b/src/main/java/com/loafle/overflow/module/noauthprobe/service/NoAuthProbeService.java
index 6246da6..6168bab 100644
--- a/src/main/java/com/loafle/overflow/module/noauthprobe/service/NoAuthProbeService.java
+++ b/src/main/java/com/loafle/overflow/module/noauthprobe/service/NoAuthProbeService.java
@@ -1,11 +1,15 @@
 package com.loafle.overflow.module.noauthprobe.service;
 
 import com.loafle.overflow.module.domain.model.Domain;
+import com.loafle.overflow.module.member.model.Member;
 import com.loafle.overflow.module.noauthprobe.dao.NoAuthProbeDAO;
 import com.loafle.overflow.module.noauthprobe.model.NoAuthProbe;
+import com.loafle.overflow.module.probe.model.Probe;
+import com.loafle.overflow.module.probe.service.ProbeService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import java.util.ArrayList;
 import java.util.List;
 
 /**
@@ -17,6 +21,8 @@ public class NoAuthProbeService {
     @Autowired
     private NoAuthProbeDAO noAuthProbeDAO;
 
+    @Autowired
+    private ProbeService probeService;
 
     public NoAuthProbe regist(NoAuthProbe noAuthProbe) {
 
@@ -32,8 +38,21 @@ public class NoAuthProbeService {
         return this.noAuthProbeDAO.findOne(id);
     }
 
-    public List<NoAuthProbe> registForNoAuthProbes(List<NoAuthProbe> noAuthProbes) {
+    public void registForNoAuthProbes(List<NoAuthProbe> noAuthProbes) {
+
+        // Todo encryption key generation & probe key generation
+
+        // Todo domain injection & member injection
+//        List<Probe> resProbe = new ArrayList<>();
+        Probe probe = null;
+        for (NoAuthProbe noAuth : noAuthProbes) {
+            probe = new Probe();
+            probe.setProbeKey(noAuth.getApiKey());
+            probe.setDomain(new Domain(1));
+            probe.setAuthorizeMember(new Member(1));
+//            resProbe.add(probe);
+            this.probeService.regist(probe);
+        }
 
-        return this.noAuthProbeDAO.save(noAuthProbes);
     }
 }