diff --git a/backend/routes/projects/index.js b/backend/routes/projects/index.js
index 8bde248..032eac2 100644
--- a/backend/routes/projects/index.js
+++ b/backend/routes/projects/index.js
@@ -1,11 +1,14 @@
 const express = require('express');
 const router = express.Router();
-const defineProject = require('../../models/projects');
 const { DataTypes, Op } = require('sequelize');
+const defineProject = require('../../models/projects');
+const defineMember = require('../../models/members');
 
 module.exports = function (sequelize) {
   const { verifySignedIn } = require('../../middleware/auth')(sequelize);
   const Project = defineProject(sequelize, DataTypes);
+  const Member = defineMember(sequelize, DataTypes);
+  Project.hasMany(Member, { foreignKey: 'projectId' });
 
   router.get('/', verifySignedIn, async (req, res) => {
     try {
@@ -17,9 +20,24 @@ module.exports = function (sequelize) {
           },
         });
       } else {
+        // public projects, owned projects, participated projects will be returned
         projects = await Project.findAll({
+          include: [
+            {
+              model: Member,
+              attributes: [],
+              where: {
+                userId: req.userId,
+              },
+              required: false,
+            },
+          ],
           where: {
-            [Op.or]: [{ isPublic: true }, { userId: req.userId }],
+            [Op.or]: [
+              { isPublic: true },
+              { userId: req.userId },
+              sequelize.where(sequelize.col('Members.userId'), req.userId),
+            ],
           },
         });
       }