The invention discloses an included-angle type adjustable universal wrench and belongs to the field of hardware tools. The problems that at present, adjusting clamping blocks of common adjustable wrenches are moved through adjusting screw rods, the efficiency is very low, and time and effort are wasted are mainly solved. The structure of the included-angle type adjustable universal wrench comprises a wrench base body and adjusting sliding blocks. The wrench base body is of a Y-shaped structure. The adjusting sliding blocks are located at the two front ends of the wrench base body correspondingly. The two front ends of the wrench base body are each provided with a T-shaped groove. An opening in each T-shaped groove directly reaches each front end surface of the wrench base body. The bottom of each adjusting sliding block is provided with a T-shaped protrusion, the upper end of each adjusting sliding block is provided with an oblique plane, and a 30-degree included angle is formed between each oblique plane and the bottom surface of the corresponding T-shaped protrusion. In the using process of the included-angle type adjustable universal wrench, the adjusting sliding blocks can be rapidly slid, so that an opening of the adjustable universal wrench is suitable for the required size, the effects of being convenient and efficient are achieved, the structure is simple, the manufacturing cost is low, and the applicability is wide.