Abstract: Agricultural mechanization is the equipment foundation of modern agriculture, agricultural mechanization to the whole process, comprehensive, high quality, efficient development, must accelerate the repair of plant protection machinery. The slow development of plant protection machinery and pesticide application technology in China is closely related to the characteristics of plant protection machinery itself. However, in recent years, it has made great progress, but it is bogged down by problems such as insufficient integration of agricultural machinery and techniques. Self-propelled spray boom sprayer and self propelled the wind send pesticide spraying machine has high utilization and good uniformity of applying pesticide and the target quality, high efficiency advantages, is to address the control effect is poor, pesticide pollution the most economical means, become the negative effects to reduce pesticide, reduce cost increase efficiency, improve the effect of prevention and control and prevention and control ability, ensure the quality of agricultural products, the important way to raise the capacity of agricultural production, but also protect the agricultural ecological environment and realizing the fundamental way out for "pesticides zero growth". European plant protection machinery and farm machinery in the developed countries by means of comparison and analysis of agricultural integration experience, the parts of our country to carry out the experiment and demonstration, the conclusion is agronomy, pesticides and agricultural machinery, etc blend mutually promote each other, to solve the bottleneck problems restricting the development of plant protection machinery, can promote the whole agricultural mechanization development speed and quality, can promote the development level of agricultural modernization.