A mood monitoring device, system and method are provided. The mood monitoring device includes one or more processors; and a storage. The storage stores one or more programs which are configured to be executed by the one or plurality of processors. The one or more programs comprise instructions for performing the following operations: receiving a status message that is sent by a terminal and indicates a mood status of a user, the terminal and the mood monitoring device having a binding relationship; and presenting a message that reflects the mood status of the user in accordance with the status message.