The invention discloses a ratchet spanner, comprising a body, a driving piece, at least one clamping piece, a reversing device and a push device, wherein the reversing device comprises a control piece and a toggling piece; the control piece can be rotatably arranged in an axle hole of the driving piece, one end of the control piece is provided with a clamping part, the push device is arranged in the clamping part and is elastically butted against the positioning part of the clamping piece; the toggling piece is pivoted on one end of the driving piece and is provided with a clamping hole in which the clamping part of the control piece can be held, and the toggling piece can be interlocked with the control piece to rotate. The ratchet spanner of the invention adopts the design of separatingthe control piece from the toggling piece, so that when being accidentally touched, the toggling piece can not be interlocked with the control piece to move down, and a sleeve barrel combined with the combination part of the driving piece can not be accidentally separated, thereby ensuring the ratchet spanner to be considerably safe and reliable; and the ratchet spanner has the advantages of easyand fast processing, reduced production cost and better structural strength.