Abstract: This paper puts forward ways and methods of inspiring students' learning interest in engineering mechanics using the mechanical contest problems in cultivating students' creative thinking ability and mechanical modeling ability. By adjusting the content of the teaching examples, increasing the interest of the examples, strengthening the training of mechanical modeling and enhancing the consciousness of qualitative analysis, the problems encountered in the training for the mechanical competition are effectively solved. The results show that the teaching mode of "promoting teaching by competition" can effectively stimulate students' enthusiasm for learning mechanics and help them master the core content of the course.