NOVELTY - A silver paste is obtained by mixing and ball milling component (A) and component (B). The component (A) comprises 40-50 pts.wt. 40-50 pts.wt. silver powder having particle size of 16-25 mu m, 5-10 pts.wt. silver powder having particle size of 61-90 nm, 10-15 pts.wt. organic carrier (a), and 15-20 pts.wt. glass powder (A) comprising 5-10 pts.wt. silica, 20-20 pts.wt. bismuth trioxide, 5-10 pts.wt. titanium oxide, 2-5 barium oxide, 2-5 pts.wt. vanadium oxide and 1-3 pts.wt. silver oxide.    USE - Lead-free silver paste is used for silicon solar cell.    ADVANTAGE - The silver paste is free from lead and is environmentally friendly. The solar cell using the silver paste has high stacking density, conductivity and durability.    DETAILED DESCRIPTION - A silver paste is obtained by mixing and ball milling component (A) and component (B). The component (A) comprises 40-50 pts.wt. 40-50 pts.wt. silver powder having particle size of 16-25 mu m, 5-10 pts.wt. silver powder having particle size of 61-90 nm, 10-15 pts.wt. organic carrier (a), and 15-20 pts.wt. glass powder (A) comprising 5-10 pts.wt. silica, 20-20 pts.wt. bismuth trioxide, 5-10 pts.wt. titanium oxide, 2-5 barium oxide, 2-5 pts.wt. vanadium oxide and 1-3 pts.wt. silver oxide. The organic carrier (A) is prepared by mixing 30-40 pts.wt. turpentine alcohol, 15-20 pts.wt. triethanolamine, 10-20 pts.wt. tributylamine, 5-10 pts.wt. carboxymethyl cellulose, 2-5 pts.wt. 1,4-dihydroxy sulfonic acid amine and 1-3 pts.wt. 2,5-polyethylacrylate. The component (B) comprises 5-10 pts.wt. copper powder having particle size of 1-5 mu m, 5-10 pts.wt. copper powder having particle size of 30-60 mu m, 3-6 pts.wt. organic carrier (b) and 5-10 pts.wt. glass powder comprising 10-20 pts.wt. silica, 5-8 pts.wt. zinc oxide, 2-5 pts.wt. zirconium oxide, 2-5 pts.wt. magnesium oxide, 1-5 pts.wt. aluminum oxide, and 1-3 pts.wt. yttrium oxide. The organic carrier (b) is prepared using 10-20 pts.wt. propylene glycol monobutyl ether, 5-10 pts.wt. dibutyl phthalate, 5-10 pts.wt. ethylene glycol ether, 2-5 pts.wt. acrylic acid resin, 1-3 pts.wt. triacetin-1,3-alkenyl amide, and 0.5-1 pts.wt. diethylene glycol butyl ether acetate. An INDEPENDENT CLAIM is included for preparation of silver paste.