The invention provides an automatic storing and taking device for PCB micro-drill milling tools. A discharging guide polished rod and a discharging power lead screw are arranged on a container side by side. A discharging push plate is slidably arranged on the discharging guide polished rod in an empty sleeving manner. The discharging power lead screw is sleeved with a threaded hole in the discharging push plate. A feeding power lead screw is sleeved with a threaded hole in a feeding push plate. The front portion of the feeding power lead screw penetrates a through hole in a supporting block. A right driven chain wheel and a feeding driven chain wheel are mounted at the front end of the feeding power lead screw. A left driven chain wheel and a discharging driven chain wheel are mounted at the front end of the discharging power lead screw. The feeding driven chain wheel is connected with a right-end transmission chain wheel through a chain. The discharging driven chain wheel is connected with a drive driving chain wheel through a chain. The right-end transmission chain wheel and the drive driving chain wheel are connected with a drive motor. The right driven chain wheel is connected with a return transmission chain wheel through a chain. The left driven chain wheel is connected with a return driving chain wheel through a chain. The return driving chain wheel and the return transmission chain wheel are connected with a return motor. The automatic storing and taking device is high in working efficiency, and labor cost is lowered.