This paper attempts to establish an output-oriented overseas corporate social responsibility performance evaluation framework，and after conducting case studies on Teda Project in Egypt and CMG’s Project in Djibouti，it’s found that in recent years，the overseas social responsibility performance of Chinese going-out enterprises has made remarkable progress and outstanding achievements. The reason is that an overseas social responsibility promotion system with the trinity of government，society and enterprises has been initially formed in China. But generally speaking，going-out enterprises still paid more attention to economic benefit output，and in terms of social benefit output，there were imbalances between Central enterprises and other enterprises，between different types of social benefits，and between “doing” and “speaking”. In the future，as BRI has entered the stage of high-quality development，it is necessary to understand the significance of improving overseas social responsibility for the sustainable and high-quality construction of BRI，and systematically enhance the awareness and ability of going-out enterprises in fulfilling their overseas social responsibility.