This study examines how corporate governance influences short-term and long-term bidder returns from China’s domestic mergers and acquisitions during 2001-2010. We examine a range of corporate governance measures covering ownership structure, board structure, insider ownership and managerial incentives while controlling for bidder and deal characteristics. Our initial results from events analyses show that market responses differ in ways which suggest a difference in how the market’s assessment of share price from the perspectives of short run and long run. Bidders obtain significant positive abnormal returns over the five-day event period but suffer significant wealth losses for two years following the deal completion. Our further analyses on factors driving the price difference show that executive ownership (positive) and state ownership (negative) exert opposite effects on the announcement period returns. The returns further differ by way of payments with positive (negative) effects from stock (cash) financing. Our long-term regression analyses show that the positive impact of executive ownership remains. Independent directors record a negative effect on abnormal returns. Nevertheless, board independence measured by the composite corporate governance index exerts a significant, positive effect on shareholder wealth. Our study highlights the need for the state to accelerate the share structure reform and formulate policies that encourage executive ownership and sound corporate governance.