A method and an apparatus for audio testing are provided. The method is adapted to an electronic device with a first and second audio receive devices and a first and second audio send devices. The method includes following steps. A first and second audio testing signals are sent to the first and second audio receive devices of the electronic device. The electronic device has a first loop forming by connecting the first audio receive device and the first audio send device electrically, and has a second loop forming by connecting the second audio receive device and the second audio send device electrically. The first and second audio send devices send a first and second response signals respectively. The first and second response signals are received and analyzed to test functions of the first and second audio receive devices and the first and second audio send devices.