The invention relates to a feeding mechanism. The feeding mechanism comprises clamping bases arranged in parallel in a spaced mode, a first clamping strip and a second clamping strip are installed on the clamping base respectively, a discharging mechanism is installed at one ends of the clamping bases, a workpiece falling from the discharging mechanism is clamped between the first clamping strip and the second clamping strip, and clamping air cylinders are installed on the clamping strips in a spaced and staggered mode; an installation plate is arranged on the outer sides of the clamping bases and provided with an air cylinder and a guide rod at the upper end, a piston rod of the air cylinder penetrates through the installation plate and fastened on a fixing plate, the guide rod penetrates through the installation plate and the fixing plate through a shaft sleeve, and the head of the guide rod abuts against the workpiece. The feeding mechanism is compact and reasonable in structure, convenient to operate, reliable in action and high in working efficiency, and the workpiece can be conveniently conveyed to a clamping station through actions of the air cylinder and the action of the guide rod.