From a global perspective，Japan is advanced in service industry and service trade and play a leading role with high-level openness，showing strong international competitiveness in industries such as construction. Using the OECD Services Trade Restrictiveness Index，it is found that Japan has promoted the openness of many industries such as logistics，finance and architecture by partially removing competition barriers and discriminatory measures and easing restrictions on foreign entry in recent years，but tightened some restrictions on cross-border data flows. Meanwhile，Japan has taken more comprehensive measures to maintain the leading opening up of motion pictures，construction etc. Although the openness of broadcasting，telecom and legal services has decreased slightly，there is still a high level of opening up in terms of movement of people. Drawing on Japan’s experience，China should steadily open its service trade，improve relevant laws and regulations to promote opening up，provide more favorable environment for the service trade，and seek to play a leading role in the formulation of service trade rules through higher-level opening up.