Compring with CVT(stepless automatic transmission) and AT(hydraulic automatic transmission),AMT has high transmission efficiency,good fuel use performance(fuel consumption is 10% lower than manual gear) and low cost(1/3 to 1/4 of AT),simple structure and easy maintenance,compact installation space and light weight.AMT developed by Beijing Beihang University and Hafei Automobile Corporation with complete intellectual right will put into production.The AMT production is of significance for reduction of homemade vehicles cost of automatic gear,open of technical blockade of foreign countries and enhancement of automatic technique level.