The invention discloses an intake valve structure of a compressor. The intake valve structure comprises an intake valve body and a flow control mechanism; the intake valve body has a hollow cavity, an air supply accommodating tank communicated with the hollow accommodating cavity, and an exhaust channel communicated with the air supply accommodating tank; a valve base is formed between the air supply accommodating tank and the exhaust channel; the flow control mechanism includes a cylinder body, a valve rod, a valve and an elastic element; the cylinder body is mounted on the air supply accommodating tank; the valve rod is movably inserted in the cylinder body; the valve is fixed at the end part of the valve rod; the elastic element is elastically clamped between the cylinder body and the valve; and the valve is operatively opened and closed corresponding to the valve base, and is positioned on the side of the air supply accommodating tank. The intake valve structure can effectively limit a fluid from entering the internal of the compressor to achieve low-load starting.