The invention discloses a grid electrode charging and discharging adjustment circuit used for a grid control device, and belongs to the technical field of power and electronics. An on-off control signal is connected with control ends of four analogue switches; a grid control signal is loaded to the grid electrode of a corrected field effect transistor under the action of the four analogue switchesso as to control the opening degree of the field effect transistor, thereby realizing the purpose of adjusting the grid drive signal current, that is to say, adjusting the charging and discharging current of the grid electrode of the grid-control device to realize variation of the on-off characteristic and the conduction characteristic, wherein the on-off control signal is connected with the input end of a grid drive module to control the grid drive module to generate a grid drive signal. The grid electrode charging and discharging adjustment circuit used for the grid control device realizesadjustment of the on-off characteristic and the conduction characteristic of the grid control device by adjusting the grid current of the grid control device, has the advantages of being simple, efficient, comprehensive in function, integratable and the like, and is particularly suitable for parallel current-sharing application of the grid control device.