财政部颁布的新企业合并会计准则,明确提出了购买法和权益结合法两种企业合并方法并存的二元格局。本文在新会计准则的基础上,运用事件研究法研究了我国证券市场对发生重大变化的企业合并会计准则的反应。实证结果表明,新企业合并会计准则的重大变化给我国证券市场带来了明显的经济后果,在2006年年报公布日有显著的市场反应。 The new accounting standard for merger of enterprises promulgated by the Ministry of Finance clearly put forward the dual pattern of the coexistence of the two methods of the merger of the purchase method and the equity method. Based on the new accounting standards, this paper studies the reaction of China’s securities market to the business combination accounting standards that have undergone significant changes by using the event research method. The empirical results show that significant changes in the new accounting standards for business combinations have had obvious economic consequences for the securities market in our country. There was a noticeable market response to the publication date of the 2006 annual report.