The invention relates to the technical field of diodes, in particular to a pin bending device for silicon carbide diodes, comprising a workbench, a fixing assembly, and a bending assembly; the workbench is also provided with a transmission assembly for transmitting the diode, and the transmission assembly includes a first A conveyor, a first push plate and a first linear drive. The present invention provides a pin bending device for silicon carbide diodes. The diodes are placed through the grooves on the first conveyor, so that the diodes follow the transmission surface of the first conveyor to transmit, and the first conveyor is controlled by an external detection device. Stop or operate to make the diode reach the designated position, and then push the first push plate upward through the first linear driver, so that the first push plate passes through the corresponding groove, thereby driving the diode on the groove to move up to the fixing component for fixing , the bending component is bent, and then the first linear driver drives the diode to reset back to the transmission surface, which solves the problem of low efficiency of the existing diode bending angle.