Most wind turbines are located in remote area or sea shore, fire inside the turbine cabin may cause huge losses. To solve the problem of fire control for wind turbine, a fire detection and protection system based on embedded AVR computer and remote monitoring technology was developed. The temperature, smoke and picture signals were acquired and super fine powder distinguisher was controlled to prevent fire. RS485 and fiber net were used to construct the automatic distinguisher network in wind generators. The experiment results show its good performance meets the aim of fire control of wind turbines.