As you can see from above image, an unmanned aerial vehicle of crop protection was spraying pesticides in the paddy fields of Liaojiang town of Zixing city. As a demonstration county (city) of mechanization technology promotion projects of rice seedling and transplanting, Zixing city placed great efforts on the promotion of the mechanization production of rice. Local agricultural machinery cooperative bought an unmanned aerial vehicle of crop protection which can finish the work in one minute/mu and the cost of power consumption is just one yuan/mu. Besides spraying pesticides, the unmanned aerial vehicle can also be used for pollination, fertilization, and etc.