A method of manufacturing photochromic lens, which is characterized in that the method includes putting photochromic materials between the first layer of PC film and the second layer of PC film, glueing with optical cement, and then finalizing the design, thus forming a photochromic sheet (5) matching with the lateral sides of lens (4); placing the photochromic sheet (5) in the injection mold cavity of lens (4) in advance, which is placed in the lateral sides of lens (4); injecting the melted PC material into the cavity. Before curing, the PC material is at a high temperature of 260-280 , under which the PC material and photochromic sheet will fuse into one. After curing, a multi-layered photochromic lens is obtained. The present invention also provides a photochromic lens made by the above method. The present invention makes the combination of photochromic material and lens more stable and reliable, and not easy to fall off and lose effect even exposed to the sun and rain, so the photochromic effect can be maintained for a long time.