Socket wrench

A socket wrench includes a handle (10) having a housing (12), a drive shank (13) having a ratchet wheel (131) mounted in the housing, two pawl members (16) engaged with the ratchet wheel, a switching member (15) located between the pawl members, two elastic members (S) each biased between the housing and the respective pawl member, a control knob (14) connected with the switching member, a driven arm (21) having a mounting sleeve (20) and an arcuate mounting slot (22), a connecting plate (17) provided on the handle, and two driving arms (18; 19) provided on the connecting plate and received in the mounting slot. When in use, one of the driving arms drives the driven arm by a leverage to drive the drive shank to rotate a socket (30a) to operate a workpiece in an energy-saving manner.