A container data center system includes a container, a plurality of servers, at least a regulation device, a first refrigeration device and a second refrigeration device. The container defines a first receiving room and a second receiving room isolated from the first receiving room. The servers are received in the first receiving room. The at least a regulation device is received in second receiving room. The at least regulation device is electrically connected to the servers for regulating the servers. The first refrigeration device is installed outside the container for cooling the first receiving room. The second refrigeration device is installed outside the container for cooling the second receiving room.