A measuring method of elastic modulus is proposed，the measurement bracket is designed and made by 3D printer．The MEMS inclination sensor is used to get the initial data of the tiny angle of the bracket rotating with the deformation of the wire． The moving average filtering and the average algorithm of the difference points are used to get the measuring angle，and the length deformation of the measuring wire under different tensile forces are obtained according to the trigonometric function．According to the corresponding relationship between elastic modulus and deformation in the drawing method，the elastic modulus of the metal wire to be measured is obtained．The experimental results show that the Young’s modulus is close to the theoretical value，and the relative uncertainty is about 5．49%．