A heat exchanger processing device, comprising a first assembly, a sampler, a controller, and an instruction circuit, wherein the first assembly comprises a sliding rod, the sampler and the instruction circuit is movable back and forth along the sliding rod, the first assembly further comprises a comb-shaped member, a length direction of the comb-shaped member is parallel to a first direction, the comb-shaped member comprises a plurality of comb teeth, the comb teeth are spaced in the first direction, and the controller is connected to the sampler and the instruction circuit respectively.