Abstract:Semen collection training of breeding rams is the first step and the most important link in developing "ambient temperature artificial insemination technique for sheep", which directly affects the production target of sheep improvement. It is relatively simple in theory, but there are some difficulties in actual operation, mainly including the mastery of the details of operation, the skilled process of training procedures and method. This technique has played a leading role in the development of the mutton sheep industry in Gansu.