The invention discloses an enterprise data storage system. The enterprise data storage system comprises an enterprise computer, a memorizer, a register, a router, a cloud storage platform, a cloud application platform and a control node, wherein the enterprise computer, the register and the router are connected with the memorizer; the cloud storage platform, the cloud application platform and the control node are connected with the router. The enterprise data storage system is capable of meeting the use requirements of middle and small-sized enterprises and the production cost of the middle and small-sized enterprises cannot be increased.