Usually,image zooming is an interpolation of the original image，achieving high quality zooming image as fast as possible．But it is well known that many traditional interpolation methods such as bilinear or bicubic often suffer from blurring edges or introduce zigzag errors．In this paper,a new adaptive image interpolation method based on edge，introducing rectangular interpolation and quincunx interpolation，putting forward the gradient weight function，motivated by the work of Nira Shezaf et al.，is presented．The experimental results show that the new method carl improve the quality of zoomed image effectively．At last，an evaluation is presented to assess the quality ofzoomed image．