Aiming at the problems that machine vibration wireless sensor networks has a low network transmission rate in multi-hop application due to the intense channel competition, a multi-channel data transmission method based on time synchronized scheduling is proposed to improve the multi-hop transmission performance for clock synchronization accuracy, network scheduling efficiency and channel interference. The clock synchronization method for multi-hop network based on beacon timing compensation is used to realize the whole network synchronous scheduling of data transmission. The data transmission scheduling method of father-son link timing rotation is utilized to maximize the effective transmission time. Furthermore, the interference minimization channel allocation method is adopted to realize the transmission channel allocation in multi-hop networks and to avoid the influence to the parallel data transmission from adjacent frequency interference. In addition, the packet loss detection retransmission mechanism is used to guarantee the reliability of data transmission and avoid vibration data packet dropout. Multi-channel data transmission performance test results show that the method can improve the data transmission rate of multi-hop network from 10 kbps to 70 kbps, and meet the data transmission requirements of multi-hop mechanical vibration wireless sensor networks.