Abstract: Agricultural machinery circulation has reached a prosperous era throughout the whole history in China，it is benefit from the agricultural machinery subsidy.As a key step of agricultural mechanization，agricultural machinery circulation takes on the responsibility range from products′ delivery and after service for the consumers.Dealers assume a majority of work for sales，first，midst and last to many manufacture，particularly it is essential to farmers about after service.A right agricultural machinery circulation repair and service system is very important for infirm farmers，for increasing development level of agriculture mechanization and for building an economical resource used society.Nowadays，several phenomena should be paied attention in the field of agricultural machinery circulation.