The invention relates to the field of a compressor, in particular to a compressor air suction pipe and a manufacturing method and application of the compressor air suction pipe. The compressor air suction pipe comprises an air suction outer pipe and an air suction inner pipe, wherein the air suction outer pipe comprises a first outer pipe and a second outer pipe, and the first outer pipe and the second outer pipe are in butt welding through flash welding; and the air suction inner pipe comprises a first inner pipe and a second inner pipe, and the first inner pipe and the second inner pipe are in butt welding through flash welding. The manufacturing method of the compressor air suction pipe comprises preheating and upset-forging. The compressor air suction pipe is applied to optional one of an air conditioning compressor, a refrigerator compressor and a scroll compressor. According to the compressor air suction pipe manufactured by adopting the manufacturing method, the welding materials are saved, the production cost is reduced, and the environment-friendly production process without waste gas is ensured as well.