The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: 1.50≤f1/f≤10.00; and −20.00≤R3/d3≤−5.00. The camera optical lens can achieve a high imaging performance while satisfying a design requirement for ultra-thin, wide-angle camera lenses with large apertures.