The invention discloses a vertical axis wind-driven power generating monitoring device based on multi-network fusion and distributed sensing. The vertical axis wind-driven power generating monitoring device mainly consists of site measurement and processing equipment and upper computer intelligent display equipment. The site measurement and processing equipment comprises an aerodynamic measurement module, a power generating power measurement module, a vertical axis polarization measurement module, an electromagnetism and noise measurement module and a data monitoring and processing module. A microprocessor of the data monitoring and processing module internally has a data abnormity judgment and measurement algorithm and can judge and measure whether data are abnormal or not. Zigbee wireless communication and wind-solar storage mode power supply are adopted inside the site measurement and processing equipment. The site measurement and processing equipment is in WiFi wireless communication with the upper computer intelligent display equipment. The vertical axis wind-driven power generating monitoring device has the characteristics of being convenient to mount, reliable in test, modular in function, flexible in networking, friendly to interfaces, easy to maintain and the like through the technologies of multi-sensor detection, wireless network communication, multi-microprocessor operation and the like.