Abstract: Necessity of mechanized operation in the field management of seed maize，such as emasculation，pest control and paternity removal，was discussed.Technical characteristics and application status of typical machines and tools at home and abroad were mainly analyzed.Factors that restrict development and popularization of field management machines and tools were summarized.Development trend of field management mechanization of seed maize was discussed.The conclusion could provide reference for research and development，popularization and application of corn field management equipment in China.