The utility model discloses a weighing device of powder material, including powder storage unit, powder metering weighing unit and control and data processing unit, powder metering weighing unit includes rack -mounted metering weighing container and carries out the weighing device that weighs to the powder in the metering weighing container, and weighing device is connected with control and data processing unit electricity, and this weighing device still includes and take out the unit with the automatic automation of taking out from the metering weighing container in of the excessive powder inthe metering weighing container, takes out the unit automatically with control and the data processing unit is electric is connected. Automatically, take out the preferred powder charge level heightsensor of including of unit, take back device and recycling bin, powder charge level height sensor and metering weighing container or frame fixed connection take back the device and include cylinder outer tube, nested cylinder inner tube, hoist mechanism and sideslip mechanism at outer pipe inner cavity. The utility model discloses can accurate automation take out excessive powder, improve work efficiency, guarantee that the production run is stable in succession.