The invention relates to a profiling grinding repairing device for the end surface of an arresting gear of an aero-engine. The profiling grinding repairing device comprises a base, a swinging mechanism, a clamping mechanism and a grinding mechanism; the swinging mechanism is fixedly mounted on one side above the base; the clamping mechanism is fixedly mounted on the other side above the base; the grinding mechanism is mounted on the swinging mechanism; the arresting gear is fixed to the clamping mechanism; an output end of the grinding mechanism grinds the arc end surface of the arresting gear; the output end of the grinding mechanism can perform reciprocating arc swinging relative to the arc end surface under the swinging action of the swinging mechanism. The profiling grinding repairing device has the advantages that the grinding trajectory is amplified by utilizing a profiling principle; profiling grinding is performed on the end surface of the arresting gear by adopting the profiling swinging mechanism of the arresting gear; the profiling grinding repairing device is low in manufacturing cost and easy to operate; batch production is easy to realize; through a transmission mechanism, the labour intensity of an operator is reduced; the operation is simple; the grinding efficiency is high; the grinding consistency is high; the precision is high.