An imaging lens consisting of in order from an object side to an image surface side, a diaphragm, a first lens that is a meniscus lens having a positive power whose convex surface faces the object side and a second lens that is a lens having a negative power whose concave surface faces the object side, wherein a condition expressed by the following expression is satisfied: 0.05≦r1/r2≦0.29, where r1 is a center radius curvature of the object side surface of the first lens and r2 is the center radius curvature of the image surface side of the first lens.