Abstract: In order to improve the efficiency of engineering drawing, reduce simple and repetitive drawing work, and ensure the standardization of engineering drawing on the basis of realizing intelligent drawing, machine learning is proposed to be applied to engineering drawing. Text similarity retrieval technology, image similarity retrieval technology and KNN algorithm are used in the secondary development of SolidWorks.Combined with Python and VB.net, the engineering drawing view is automatically selected, the drawing sheet is intelligently selected, and the proportion and position of the view are adjusted to ensure the correctness of the view selection, the standardization of the size and the rationality of the layout, saving a lot of manual drawing time.