The invention relates to an intelligent cake sale device, a working method and monitoring method of the intelligent cake sale device. The intelligent cake sale device includes a power source module, a remote communication module, a human-computer interaction module, a control module and an execution module; the control module is in control connection with the remote communication module, the human-computer interaction module and the execution module respectively; the power source module is connected with the remote communication module, the human-computer interaction module, the control module and the execution module respectively; and the control module includes a device function information unit, a food material information monitoring unit, a cake making processing instruction set, a human-computer interaction unit, a processing flow control unit, a movement coordinated control unit, a device state monitoring unit and a remote communication unit. The intelligent cake sale device can combine device information and food material information into a variety of kinds of cake type fast food processing flows, so as to provide cake style fast food of a variety of kinds of tastes for users. The intelligent cake sale devices scattered in different sites can be connected with one another through an Internet of things, and therefore, all the intelligent cake sale devices can be remotely monitored.