Abstract: A new type adjustable torque wrench is disclosed, which comprises a handle, a housing and a screwdriver, wherein the housing is engaged with handle, a cylindrical barrel is fixed into the housing, a lower and upper gear arranged in the barrel, and the engagement surfaces therebetween consist of a number of circumferentially arranged inclined surfaces, the upper gear contains several clamping strips on the outer side wall for engagement with the corresponding gear grooves on the inner wall of the barrel, the barrel has several notches regularly spaced on the upper circumferential surface, a rotatable lid containing several protrusions on the side wall for engagement with the notches is arranged on the notches, a spring and a gasket are provided between the rotatable lid and the upper gear, there is a locking apparatus disposed on the rotatable lid.