The utility model discloses a special squarer for a wide-width brocade weaving machine, which comprises a squarer frame, wherein the squarer frame consists of an upper transverse frame, a lower transverse frame, a left lengthways frame and a right lengthways frame, and at least one of support rods are arranged between the upper transverse frame and the lower transverse frame. According to the special squarer, the upper transverse frame and the lower transverse frame can be still guaranteed to be in parallel with each other after the conventional brocade weaving machine squarer is widened, so that the elasticity of each buckle can be guaranteed to be accordant, the parallelism and the unknotting can be kept, and the technological requirement of the wide-width brocade can be met.