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 having a positive refractive power; 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: −10.00≤f2/f3≤−5.00; and 1.20≤d2/d4≤3.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.