Abstract: Main points of development of "new agricultural science", development contents and requirements of agricultural engineering discipline under background of "new agricultural science" were introduced． Taking agricultural engineering discipline of Jiamusi University as an example, necessity and importance of innovation of agricultural engineering major construction in applied universities were expounded, significance of agricultural engineering teaching exploration in colleges and universities under background of "new agricultural science" was pointed out． Combined with actual situation, improvement space existing in current agricultural engineering major construction was analyzed to provide directions for follow-up innovation． To explore construction path of agricultural engineering major, relevant practical development measures and suggestions were put forward．