The invention discloses a grinding and polishing executing mechanism for a hyperbolic lens machining machine tool. The grinding and polishing executing mechanism comprises a main shaft (1). A convex hyperbolic die (7) is arranged on the top of the main shaft (1). A lens to be machined is installed on the bottom of a lens fixture (8) over the convex hyperbolic die (7), the X axis of the lens to be machined is parallel to the X axis of the convex hyperbolic die (7), and the lens fixture (8) is provided with a reciprocating swinging needle (10) connected with the lens fixture (8) in a contact manner. Under driving of the main shaft (1), the convex hyperbolic die (7) and the lens fixture (8) synchronously rotate, and under the action of the reciprocating swinging needle (10), the lens fixture (8) can do reciprocating movement relative to the Y axis of the convex hyperbolic die (7). By means of combination of rotation and reciprocating swinging, after the lens and the die rub each other under certain pressure action, a concave hyperbolic lens is obtained. The grinding and polishing executing mechanism has the beneficial effects of being simple in structure and stable in performance and is suitable for being used and popularized.