Commercial credit is the core of the credit problem in China now. The enterprise blacklist system is the important component of the commercial credit system. The enterprise blacklist system has been constructed in variety of districts and fields at present. However, the system faced with the dilemma of the ambiguity of the subject and the disunity of the standard. The commercial functions of the enterprise blacklist system should include activating the zombie clause in current law, increasing the transaction cost of the illegal and dishonest enterprise and exploring a reasonable way for the construction of the commercial credit system. Therefore, we should focus on the practice, specifying the subject of the formulation and implementation, unifying the standard of listing in the blacklist, improving the information sharing platform and results mutual recognition systems, and carrying out the linked penalty system. The system would make the illegal and dishonest enterprise hard to anything in the market.