A hinge with an auxiliary bracket, the hinge is provided on one of two lateral sides of a twin-tube bracket with an auxiliary bracket, the auxiliary bracket is in an “L” or “U” shape having a pair of openings on its front side; the twin-tube bracket has on its front side a pair of protrusions being exactly engaged in the pair of openings on the front side of the auxiliary bracket. Thereby the auxiliary bracket can be engaged with the twin-tube bracket more firmly without being subjected to releasing, this renders the auxiliary bracket to really have an auxiliary supporting function.