Wireless network communication method using access point

A wireless network communication method using an Access Point (AP). The method includes creating a polling list based on association identifications of stations (1,2,3,4) stored in the AP. Thereafter, a polling signal is transmitted to one of the stations (1,2,3,4) according to the polling list in an interval of a PCF mode. Data, which will be transmitted, is transmitted from the station in response to the polling signal transmitted from the AP. The data transmitted from the station is received by the AP, and is stored in a buffer of the AP. The number of pieces of data is compared with a threshold value set in the buffer. If the number of the pieces of data exceeds the threshold value, a polling signal is not transmitted to a next station and data stored in the buffer is transmitted to relevant stations (1,2,3,4).