The utility model provides a high -purity resin autosegregation tower, last tower body and lower tower body including mutual UNICOM, its characterized in that: the tower body sets up the structure into big -end -up down, and the upper portion of going up the tower body sets up the outlet, and the bottom of lower tower body is provided with the backwash water inlet, tower body upper portion is provided with the peep hole down, peep hole department installs the camera, camera connection resin transport picture intelligent recognition and controller, PLC control system is connected to resin transport picture intelligent recognition and controller, PLC control system is the corresponding adjusting valve of run -on gas port, inefficacy resin inlet, positive resin export, outlet and backwash water inlet respectively. The utility model discloses can effectively improve resin layering effect, improve the positive resin output purity and have the automatic control function.