An optical image capturing system with thin mounting components includes an optical imaging lens set providing at least two lenses with refractive power, an image plane, a first lens positioning element and a second lens positioning element. In certain conditions, the optical image capturing system with thin mounting components utilizes the member with a small thickness to design the positioning of the lenses, further effectively elevating the amount of light admitted into the optical image capturing system with thin mounting components and increasing the field of view thereof. The optical image capturing system with thin mounting components has an adequate illuminance and elevates the image quality in order to be applied to the small electronic products or the electronic products with slim border.