An interference proof electrical receptacle connector has an insulative housing, a mounting bracket, a first terminal set, a second terminal set, a shell and a metal cover. The mounting bracket is mounted on the insulative housing. The first terminal set is mounted on the mounting bracket. The second terminal set is mounted on the insulative housing. The shell is mounted on the insulative housing and the mounting bracket and has a cavity. The metal cover is mounted securely on the shell and has a cover body and multiple soldering feet. The cover body is mounted securely on a top surface of the shell. The soldering feet are formed on and protrude downward from the cover body. The metal cover enhances the structural strength of the shell to improve the durability of repeated engagement and disengagement of the interference proof electrical receptacle connector.