This paper finds several interesting pattern of cash dividend paying behavior in China. First, despite of low benefit of cash dividend to investors, listed companies pay cash dividends regularly. Second, there is an inertial pattern of paying cash dividend; those who pay do so regularly and those who do regularly offer lower payout ratio. Third, the inertia pattern weakens as time moves on. Fourth, the level of cash dividends declines and their paying pattern weakens as time moves on. We show that the common theories in the literature, the clientele effect theory, the signaling theory and the agency theory, cannot explain these phenomenon. The behavior of cash dividends payment in China is primarily driven by the market imperfection and the motive of large shareholder expropriation. The paper shows that firms with low shareholder concentration act more like a U.S. firm that pays dividend to convey information. Firms with intermediate shareholder concentration balance between expropriation by related party transaction and expropriation by cash dividend strategy. Firms with large shareholder concentration tend to expropriate small shareholders by cash dividend strategy.