Fuente: Wipo "BigData" The invention relates to the technical field of information technology and data science, and discloses an enterprise management system based on big data and an execution method thereof, and the method comprises the following steps: 1, building a multi-source data acquisition module, a data analysis module and a data management module; step 2, the multi-source data acquisition module is subjected to separate construction of platforms, the separate construction platforms comprise a customer relationship management platform, an Internet of Things equipment platform, an e-commerce platform, an operation platform and a third-party data platform, and data information acquired by each platform is transmitted to a data analysis module through a network; 3, a cloud computing platform, a cloud analysis platform and a cloud cleaning platform are established in the analysis module, calculation is carried out on the cloud computing platform, multi-source data definition judgment is carried out on the cloud analysis platform, and cleaning frequency is set on the cloud cleaning platform; and step 4, the data management module manages picture processing functions of the multi-source data acquisition module, the data analysis module and the data management module according to the multi-source data definition judgment data.