In this paper, an inclined micromirror with rotating motion was designed and fabricated. Firstly, polyimide was spun on the plate used as the micromirror. After being heated, the polyimide shrunk and tilted the micromirror. The micromirror was constructed on a hollow disk, and the hollow was actuated by a laterally driven mircoactuator. If the hollow disk was actuated, the inclined micromirror rotated up to 360 degrees. The used microactuator was improved from the old design. Through the use of numerical finite-element program ANSIS53, the microactuator was analyzed. From the simulation, that the improved microactuator had a displacement larger than the old design by 0.6 time was observed. Besides, the test of polyimide tilting the plate was performed separately. The results of the test were recorded and discussed.