A treadle type agaric picking machine comprises a turntable (1), a fixed disk (2), a picking claw (3) and a pedal driving mechanism, wherein the rear end face of the turntable (1) is provided with a rotary shaft (4) and a chain wheel (5), the front end face of the turntable (1) is provided with a fixing needle (6), the rear end face of the fixed disk (2) is provided with a shaft sleeve (7) at a shaft hole, the shaft sleeve (7) is sleeved with a spring (8) and a sliding block (9), the sliding block (9) is connected with a pedal (12) through a shifting fork (10) and a connecting rod (11), the picking claw (3) is composed of a hinge rod (13) and a shifting strip (14), a clamping strip (15) at a middle position is hinged to the front end of a hinge rod (13), the hinge rod (13) at the middle position is hinged to the edge of the fixed disk (2), the rear end is matched with the sliding block (9) in a contact mode, the chain wheel (5) at the rear end of the turntable is wound with a chain, one end of the chain is connected with the spring (8), and the other end of the chain is connected with the pedal. The treadle type agaric picking machine has the advantages of being simple in structure, low in manufacturing cost and convenient to use.