A multiple antenna mode control method based on an Access Point comprises the following steps: step 1, the Access Point periodically sends out a multiple antenna mode set or subset supported by the Access Point (S101); step 2, the Station reports a multiple antenna mode set or subset supported by the Station or, reports a multiple antenna mode set or subset supported by both the Station and the Access Point to the Access Point (S105); step 3, a multiple antenna mode is chosen from a multiple antenna mode set or subset supported by both the Station and the Access Point for communicating (S110). As a result, the Station and the Access Point can communicate in a reliable or high-speed antenna mode supported by both sending and receiving sides, and thereby the error frame rate is reduced, and the network throughput is increased.