General Agreement on Trade in Services (GATS) has not got any substantive breakthrough for more than 20 years since it was effective. In the year 2013, some members of the WTO negotiate on Trade in Services Agreement (TiSA) try to promote liberalization of trade in services. This paper starts from the background information of TiSA initiative and its possible legal status, then this paper analyze the core text, market access discussion based on offers and the regulatory disciplines on the basis of the TiSA negotiation, in the aspect of the core text, the fundamental issues of market access, national treatment and most favored nation treatment are designed based on GATS to explore its relationship with the multilateral trading system. In addition, in the aspect of offers and regulatory disciplines discussed in the TiSA negotiations, these two pillars are reflected as a more spillover of the high standard of services trade policy. As there is a need to promote the China's economic development by liberalizing the trade in services, Chinese government should improve the market of trade in services and at the same time to reform the domestic regulatory measures.