NOVELTY - A bicomponent organic silicon photovoltaic component sealant comprises two components, where one of the component comprises (in weight parts) 107 silicone rubber compound (I) (30-70), another 107 silicone rubber compound (II) (30-70), titanium dioxide (1-2), hydroxyl silicone oil (50-100) and filler (50-150).    USE - Bicomponent organic silicon photovoltaic component sealant for solar photovoltaic component.    ADVANTAGE - The sealant can be stored for long time at normal temperature, and surface drying time is moderate. The sealant is solidified in deep layer quickly at room temperature, so that high adhesive, good weather fastness, long outdoor service life, good ageing resistance, yellowing resistance and environment protection can be provided.    DETAILED DESCRIPTION - A bicomponent organic silicon photovoltaic component sealant comprises two components, where one of the component comprises (in weight parts) 107 silicone rubber compound (I) (30-70), another 107 silicone rubber compound (II) (30-70), titanium dioxide (1-2), hydroxyl silicone oil (50-100) and filler (50-150).    n=700-900;and    m=100-200.    INDEPENDENT CLAIMS are also included for the following:    (1) a method for preparing bicomponent organic silicon photovoltaic component sealant, which involves mixing first 107 silicone rubber compound of formula (I), the second 107 silicone rubber of formula (II), titanium dioxide and filler and increasing temperature to 100-120 degrees C. The mixture is treated for 1.5-3 hours. Temperature is increased to 160-180 degrees C. A suction is performed for 1.5-3 hours to -0.08 to -0.09Mpa. The moisture is removed. The mixture is cooled. The mixture is diluted by hydroxyl silicone. The mixture is grinded to obtain the former component. The cross-linking agent, tackifier, dimethyl silicon oil and catalyst are mixed. The mixture is sealed to obtain the latter component    (2) a method for using bicomponent organic silicon photovoltaic component sealant, which involves mixing 107 silicone rubber compound (I) and 107 silicon rubber compound (II) according to a proportion of 100:510 and de-foaming and solidifying the mixture.