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Low synchronization precision of data acquisition is an annoying problem in distributed wireless seismic data acquisition due to the increasing of the acquisition nodes and wireless transmission delay. In order to result this problem, what is put forward is that a scheme of synchronized timing to each node for the synchronous acquisition of the distributed wireless data and accurate time tagging on data packets. In this scheme, GPS (Global Positioning System) timing technology is utilized to issue the real time to the clock on each node for data acquisition, and GPS precise second pulse is also used to correct frequency error of local voltage controlled crystal oscillator so as to suppress the cumulative errors caused by non-synchronization between the nodes. By adding the time stamp information accurately in the seismic data acquisition, ensure that each node between the time synchronization error is limited within 0.1us. Even if the GPS signal loss, voltage controlled crystal oscillator and a counter joint action can ensure each node synchronous acquisition stable work 6 hours.