The present disclosure provides a camera optical lens including eight lenses which are, from an object side to an image side in sequence: a first lens having a positive refractive power; a second lens having a positive refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a negative refractive power; a sixth lens having a positive refractive power; a seventh lens having a negative refractive power; and an eight lens having a negative refractive power; wherein the camera optical lens satisfies conditions of: 0.95≤f/TTL; 3.00≤f2/f≤4.50; and 0.20≤(R5+R6)/(R5−R6)≤0.90. The camera optical lens can achieve good optical performance while meeting the design requirements for large aperture, long focal length and ultra-thinness.