The utility model discloses a small -size electric shovel cable clamping device mainly includes horizontal cantilever, vertical cantilever and base. Wherein, it is articulated that horizontal cantilever and base pass through the round pin axle, can realize the free rotation in the constant angle degree, for cable increase one degree of freedom, reduces excavator dragging the cable in the gyrationoperation, vertical cantilever and base fixed connection increase the fixed of the vertical direction of cable, improve the fixed rigidity of cable, reduce the vibration of cable when digging quick -witted operation, the first cable clamp of horizontal cantilever one end becomes constant angle degree slope and can alleviate bending to the cable. The utility model provides a this kind of structurehelps alleviateing the cable wearing and tearing that the machine of digging caused owing to phenomenons such as taking place the swing, vibrate and bend at operation in -process cable for dig that quick -witted operation security is higher, the operating efficiency is higher, can accomplish more complicated operation. Simultaneously, its simple structure, the equipment maintenance of being convenient for has reduced workman's intensity of labour.