The signature of Economic Cooperation Framework Agreement (ECFA) provides institutional guarantee for normal development of crossstrait economic and trade relation and supplies new opportunity for deep cooperation and integration of crossstrait securities market. With the continuous development of present global securities conformity and integration, it is significant and feasible to integrate the crossstrait securities market, however, there are also a lot of obstacles, therefore, on the basis of learning the experience of international securities market integration, through perfecting the content of ECFA, Taiwan and mainland China are necessary to set up universal regulations of securities market, provide measures for coordinative implementation mechanism and implementation supervision mechanism for crossstrait integrated institution of securities market and eliminate the related legal barriers and institutional impediment to boost crossstrait capital free flow and to realize crossstrait securities market integration.