Ratchet wrench and main body using same

The invention provides a ratchet wrench which comprises a main body, a ratchet wheel, a first pawl, a second pawl and a controlling piece, wherein the first pawl and the second pawl are capable of moving between a first position and a second position relative to the ratchet wheel respectively. The first position is a position providing transmission torque, and the second position is a position not providing transmission torque. The controlling piece moves in a pivotally rotating manner, and can stop in one of the first position, the second position and a middle position through operation. The main body is provided with an operating part which comprises a groove, the groove is provided with two accommodating rooms with slant surfaces and the accommodating rooms is capable of accommodating the first pawl and the second pawl.