The invention provides a fan module used for a server on the one hand. The fan module comprises a fan backboard (2) and at least one fan bracket (1), wherein each fan bracket (1) is detachably connected with the fan backboard (2) and provided with at least one fan groove (4), the fan brackets (1) and the fan backboard (2) are arranged in a spaced mode, and each fan groove (4) contains a fan module body (3). The invention further provides a server with the fan module on the other hand. The fan module used for the server and the server are provided for at least achieving the effect that vibration generated in the using process of the fan module is reduced.