Social enterprises （SE） endorsement is a process of labeling SE and segmenting them from other types of organizations. This paper centers on the SE endorsement institutions in Mainland China，HKSAR and Taiwan，mapping the status quo and comparing the similarities and difference of SE certification in above three regions. We find out that there are many similarities existing on the sponsors，core criteria，qualifications of SE，government role，result and welfare relating endorsement institutions，yet simultaneously salient differences are discovered among above three regions，which can be understood from the institutional contexts of the growth of social enterprises and the maturity of non-profit organizations in these regions. By comparing the practice of these endorsement instituions in above three regions，this artical aruges that the SE endorsement institutions varied in differnt social context，but in general these pracitces are helpful to build a special and salient indentity for social enterprises，which make it more possible to obtain the support from market，government and other organizations. Mean-while，we should be alert for fence effect in endorsement praictice，and vioid to destroy the diversity of social enterprises by setting over-rigorous certirion.