The invention relates to the technical field of automatic assembly of switch cassettes, in particular to a switch cassette screw feeding and tightening machine and a control method thereof. The switch cassette screw feeding and tightening machine comprises a controller, an operating table, a rotating table (1), a first power mechanism (2), a fixing fixture (3), a compressing mechanism (4), a containing mechanism (5) and a rotating pressing mechanism (6), wherein the first power mechanism (2), the compressing mechanism (4), the containing mechanism (5) and the rotating pressing mechanism (6) are electrically connected with the controller, a torque transducer (7) is arranged between the first power mechanism (2) and the rotating table (1) and is electrically connected with the controller. The switch cassette screw feeding and tightening machine is small in screw feeding and tightening deviation.