The invention discloses an enterprise business model evaluating system and a method based on cloud computing. The system comprises a client, a server and a data base module, the server is connected with the client through a network, the data base module is connected with the server, the client comprises an enterprise information input module which is used for submitting enterprise product and technology data, market data, value chain data, dynamic capability data, profitability data and former achievement data to the server according to a preset enterprise parameter model, then the data are stored into the data base module, the data base module further stores a preset data base, the preset data base is used for storing parameters of evaluation cases for follow-up comparison, the server comprises a parameter acquiring module and an evaluation module, and the data processing is performed in the server. According to the enterprise business model evaluating system and the method based on cloud computing, the preset data base is arranged, so that the evaluation efficiency can be improved, simultaneously the evaluation is standardized, and the conviction of the evaluation result is enhanced.