A hinged slide rail with buffering function, which includes a rail to which a hinge is mounted. The hinge has a movable blade and a fixed blade between which a buffering device is coupled. The buffering device is housed in a retention frame. The retention frame has an end forming a limiting structure. The buffering device has an active rod coupled to the limiting structure. The movable blade includes a pull bar that is connected to the limiting structure. The hinged slide rail is installed between a door panel and a body of a cabinet to remarkably enhance the convenience of operation and eliminates the potential problems of generating noise and clamping and hurting users.