Passive and active scanning conversion method and system of wireless network

The invention provides a passive and active scanning conversion method and system of a wireless network. The passive and active scanning conversion method of the wireless network comprises a passive scanning step and an active scanning step. In the passive scanning step, passive scanning is carried out according to at least one unmarked channel of a first channel bit mark, at least one of a detection response frame and a beacon frame is received, and a bit value of the at least one unmarked channel of the first channel bit mark according to at least one of the detection response frame and thebeacon frame to generate a second channel bit mark. The second channel bit mark includes at least one marked channel. In the active scanning step, active scanning is carried out according to at leastone marked channel of the second channel bit mark. Therefore, through the conversion of passive scanning and active scanning, the power consumption can be effectively saved, supervision setting does not need to be considered,