Abstract: Mechanical engineering is not only closely related to industrial production, but also closely related to the development of other industries.Based on this, the application of mechatronics technology in mechanical engineering is very necessary.The study found that traditional mechanical engineering is restricted by application conditions, and cannot meet actual requirements in terms of work quality and efficiency, which is not conducive to the long-term stable development of various industries.On the contrary, the mechatronics construction technology can avoid the above problems, so it has certain development prospects.