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