An audio jack connector adapted for receiving a plug has a base having a socket. The base has a first terminal groove and a second terminal groove opened at one side of the socket. The second terminal groove is located between the socket and the first terminal groove and connects with the socket by means of a first connecting passage. A stationary switch terminal has a first fixing slice fastened in the second terminal groove, a first contacting end projected in the first connecting passage and an opening opened in first fixing slice. A resilient switch terminal has a second fixing slice fastened in the first terminal groove, a second contacting end projected into the socket through the first connecting passage and elastically received in the opening when the second contacting end is biased by the plug to be disconnected from the first contacting end.