Device and method for local protection of thermal barrier coating on tail edge of turbine working blade

The invention discloses a device and method for local protection of a thermal barrier coating on the tail edge of a turbine working blade. The device comprises a protection clamping plate, a protection box and a turbine working blade fixing device. The turbine working blade tenon is arranged in the protection box, and the turbine working blade tenon is fixed in the protection box through the turbine working blade fixing device; the protection clamping plate is fixedly arranged on the outer side of the protection box and can be connected with the exhaust side hole in the tail edge of the turbine working blade in a matched mode. According to the protection method, the turbine working blade base body and the bonding layer are not affected or damaged, and only the thermal barrier coating in the local area of the tail edge of the turbine working blade is protected; according to the protection method, the size of the local protection area of the thermal barrier coating is convenient to control, thermal barrier coat