An optical image capturing module includes a lens assembly and a circuit assembly including a circuit substrate, a sensor holder disposed on the circuit substrate, and a surface of an image sensing component facing the circuit substrate has a plurality of image contacts. Each image contact is connected to one of the circuit contacts via a signal transmission element disposed on the image contact. The lens assembly includes a lens base disposed on the sensor holder and a lens group. The lens base has a receiving hole penetrating through two ends of the lens base and directly facing the image sensing component, thereby the lens base is hollow. The lens group is disposed on the lens base and is located in the receiving hole, so that a light could pass through the lens group and project onto a sensing surface of the image sensing component.