The invention discloses a PLC automatically-controlled heating stirrer. The invention comprises a tank, a support rack is arranged at the bottom of the tank, a discharge hatch is arranged at an innerside of the support rack, a feed inlet is arranged at one side at the top of the tank, an inner container is arranged in the tank, an electromagnetic heating coil is arranged between the inner container and the tank, a stirring device is arranged in the inner container, a PLC controller is arranged over the tank, wherein the heating stirrer comprises a fixed frame, and a first bearing pedestal isclamped at one side of the fixed frame. The heating stirrer has the beneficial effects that design is reasonable, usage is convenient, compared with the traditional stirring devices, stirring is carried out while heating is carried out in the heating stirrer provided by the invention, the reaction speed and the reaction efficiency are effectively increased, in addition, through effect of the PLC controller, the labor intensity is effectively reduced, and the heating stirrer can be more automatic.