An audio adapter includes a base body, a plug module and a receptacle disposed in the base body. The base body defines a receiving cavity at an upper portion thereof and a holding chamber at a lower portion thereof. A portion of the receiving cavity extends upward to penetrate through the base body to form a guiding channel. The plug module includes a plug body received in the receiving cavity and an audio plug. The audio plug has a connecting portion embedded in the plug body and an inserting portion projected out of the plug body. The plug body is provided with a guiding portion thereon. The guiding portion is slidably disposed in the guiding channel. The guiding portion can be pushed along the guiding channel to drive the plug body to slide in the receiving cavity and further drive the inserting portion to be stowed into the receiving cavity.