NOVELTY - A bi-component solar sealant comprises component (A) and component (B). Component (A) comprises (in parts weight) base polymer (0-100), plasticizer (10-50), filler (50-100), and reinforcing agent (1-10). Component (B) comprises terminal alkoxysilane (0-100), dimethyl silicone oil (0-100), pigment (5-30), cross-linking agent (50-100), coupling agent (5-30) and catalyst (0.001-5). The base polymer is alpha , omega -dihydroxy polydimethylsiloxane and/or alpha , omega -dimethoxy polydimethylsiloxane. Plasticizer is dimethyl silicone oil, methylphenyl silicone oil and/or methyl silicone oil.    USE - Bi-component solar sealant is used for assembling and sealing solar battery components.    ADVANTAGE - The bi-component solar sealant has excellent storage stability and curing speed.    DETAILED DESCRIPTION - A bi-component solar sealant comprises component (A) and component (B). The component (A) comprises (in parts weight) base polymer (0-100), plasticizer (10-50), filler (50-100), and reinforcing agent (1-10). The component (B) comprises terminal alkoxysilane (0-100), dimethyl silicone oil (0-100), pigment (5-30), cross-linking agent (50-100), coupling agent (5-30) and catalyst (0.001-5). The base polymer is alpha , omega -dihydroxy polydimethylsiloxane and/or alpha , omega -dimethoxy polydimethylsiloxane. The plasticizer is dimethyl silicone oil, methylphenyl silicone oil and/or methoxy silicone oil. The filler is kieselguhr, calcium carbonate and/or quartz powder. The reinforcing agent is hydrophobized white carbon black. The cross-linking agent is ethyl orthosilicate and/or propyl orthosilicate. The coupling agent is gamma -(2,3-epoxy propoxy)propyl trimethoxy silane, gamma -aminopropyltriethoxysilane and/or N-( beta -aminoethyl)- gamma -aminopropyltrimethoxysilane. The catalyst is dibutyltin dilaurate, dibutyltin diacetate, dibutyltin dicaprylate, tin caprylate, isopropyl titanate and/or tetrabutyl titanate. An INDEPENDENT CLAIM is included for preparation of bi-component solar sealant. Base polymer, plasticizer, filler and reinforcing agent are mixed in a high-speed planetary mixer and agitated for 1-10 hours in vacuum degree of -0.04 MPa to -0.1 MPa, to obtain component (A). Terminal alkoxysilane, dimethyl silicone oil, pigment, cross-linking agent, coupling agent and catalyst aromatic are mixed in a high-speed planetary mixer and agitated for 1-10 hours in vacuum degree of -0.04 MPa to -0.1 MPa, to obtain component (B). The components (A) and (B) are mixed in mass ratio of 7-13:1, to obtain bi-component solar sealant.