I would like to ask why there is no resident number in China tax cooperative medical system. China Tax Exchange Cooperative Medical System has no resident number, because there is something wrong with your cooperative medical system account. It is recommended to consult the local social security bureau. Because you pay China tax and pay the cooperative medical care, you will have different resident numbers as long as you enter the resident ID number, so there is something wrong with your cooperative medical care account. It is recommended to consult the local social security bureau.