The invention relates to a multi-level and stereoscopic boundary anti-intrusion system based on a wireless sensing network, a device and an implementation method thereof, which comprises various sensors, a wireless transmission device, a wireless sensing network node, a video capture device and an intelligent video processing system which are arranged on the boundary to capture and output sensingprobing and video signals, a video server which is connected with the video capture device for receiving and storing video signals output by the video capture signals, and a vibration positioning sensing system which is distributed especially aiming at required important defense area. The introducing application of combining a meteorological sensor and a lighting and sound alarm device can roundly and effectively increase the accuracy of system monitoring and alarm in all weather and all days. The invention further provides a stereoscopic level monitoring, an alarm system implementation scheme and a multi-level data fusing alarm scheme, which effectively reduces false alarm rate and false dismissal rate.