To most of scholars believed that mainland China‘s Taiwan Policy has never change at all, from first generation leader Mao Zedong through third generation leader Jiang Zenin. However, any policy must adjust according the difference situation, so is Taiwan Policy. To the first generation, the spirit of Taiwan Policy was liberation. The second generation, it was reunification. To the current leader it is anti-Taiwan independence. The subject of this paper is try to explain those difference meanings of Taiwan Policy.