An optical image capturing module includes a lens assembly and a circuit assembly including a circuit substrate and an image sensing component electrically connected to the circuit substrate via signal transmission elements. The lens assembly includes a fixed base disposed on the circuit substrate, a movable base, and a lens group. The fixed base made of an opaque material has a focusing hole penetrating through two ends of the fixed base, and is disposed on the circuit substrate, thereby the fixed base is hollow, and the image sensing component is located in the focusing hole. The movable base disposed in the focusing hole could move relative to the fixed base. The lens group including at least two lenses having refractive power is disposed in a receiving hole of the movable base, thereby light could pass through the lens group and project onto a sensing surface of the image sensing component.