The utility model relates to a crystal silicon solar module, including a glass layer, first glued membrane layer, battery piece cluster, second glued membrane layer, the 2nd glass layer, third glued membrane layer, liquid crystal layer, fourth glued membrane layer, the 3rd glass layer that top -down set gradually. The utility model discloses a crystal silicon solar module can the intelligent tuning printing opacity, when using as BIPV, at any time, control glass's transparent not transparency clarity, and has the privacy protection function, safety (prevent after the breakage piece from splashing security performance), the anti intensity of strikeeing is good, environment -friendly performance, have thermal -insulatedly, ultraviolet ray and the infrared effect 98% or more of separation more than 99%, can reduce heat radiation and transmission, but furnishings do not appear fading because of ultraviolet radiation in the protection room, the condition such as ageing, the protection personnel do not receive the ultraviolet ray direct projection and cause the disease, the utility model discloses there is the sound damping action, can some separation noises.