The invention aims to provide an injection mold with a demolding mechanism. A push board is arranged in a left mold and connected with push-out columns, so that a formed product in a mold cavity is pushed out; air pipes are arranged in the push-out columns, turnover pieces which can turn over upwards are arranged at the left ends of the push-out-columns, and during injection molding, the air pipes suck air so as to tightly connect the turnover pieces with the push-out columns; when push-out is needed, the push-out columns push out the product firstly to the end, then the air pipes blow the turnover pieces upwards, the product demolding is conducted while the turnover pieces turn over upwards, and push-out and demolding can be efficiently and rapidly performed. The injection mold with the demolding mechanism is simple in structure, easy to operate, capable of efficiently and rapidly pushing out the product without affecting the injection molding process and applicable to production.