Abstract: Basic situation and business scope of plant protection equipment technical subcommittee of international standardization organization that Agricultural and Forestry Tractors and Machinery Standardization Technical Committee，plant protection and cleaning equipment technical subcommittee of agricultural machinery technical committee of Standardization Administration of China were introduced.Existing problems of plant protection machinery industry of China taking part in international standardization process were analyzed according to development status of standardization for plant protection machinery industry.It provided reference for Chinese plant protection machinery industry to participate in international standardization activities in the future.