The utility model discloses an endoscope camera lens, including lens cone, hole piece, lens and lens mount, the lens cone is hollow structure, and lens cone one end is equipped with first through -hole, and hole piece and lens all are located the lens cone for the distribution is arranged in proper order to first through -hole, hole piece and lens, and the hole piece is equipped with the second through -hole, and the central line of second through -hole and the primary optic axis of lens coincide each other. In the carrier roller device, because hole piece and lens all are located the lens cone, the hole piece is equipped with the second through -hole, hole piece and lens cone have constituted the small hole imaging camera lens, based on the small hole imaging principle, , has realized light small hole imaging when passing through the second through -hole, can obtain the good depth of field, after light passes second through -hole entering lens, because the refraction effect of lens, light has changed original direction of propagation, make the angle of dispersing of light diminish, thereby the formation of image visual angle range who adds endoscope camera lens has been increased, and endoscope camera lens simple structure, can solve traditional endoscope camera lens structure complicacy and not good problem of the depth of field.