The invention relates to an intelligent on-off method and system of wind profile radar. The method includes an automatic shutdown step in which a far-end control module monitors a UPS power supply in the wind profile radar work state, when the UPS power supply is monitored to be insufficient in the electric power, and the wind profile radar is controlled to be automatically shut down; and an automatic power on step in which when the far-end control module monitors that the UPS power supply is sufficient in the electric power, the wind profile radar is controlled to be automatically started up. The intelligent on-off method and system of the wind profile radar reduce destructiveness brought by illegal power off, and save the maintenance cost of software and hardware. The radar system on-off is automatically realized at a far end, the maneuverability of the wind profile radar is increased, the manual operation cost is saved, and the operation error is reduced. The radar is automatically started up after the electricity is switched on, timely detects and reports data, and improves the available data rate. A new technical scheme is formed by fusing the wind profile radar and a far-end system based on the demands of unmanned on duty and automatic operation of the wind profile radar.