NOVELTY - Manufacture of solar cell grid line involves forming slurry layer (l1) on a front electrode surface and forming slurry layer (l2) on slurry layer (l1) surface. The slurry layer (l1) is formed using slurry (a) prepared by mixing 23 pts. wt. organic vehicle, 70 pts. wt. silver powder,5 pts. wt. glass powder and 2 pts. wt. ohmic contact additives in ratio of 55:30:10:5 and heating. The slurry layer (l2) is formed using slurry (b) prepared by mixing 10 pts. wt. organic vehicle, 85 pts. wt. silver powder, 1 pt. wt. glass frit and 4 pts. wt. binder in ratio of 53:28:14:5 and heating.    USE - Manufacture of solar cell grid line (claimed).    ADVANTAGE - The method provides solar cell grid line having excellent adhesiveness with respect to electrode substrate.    DETAILED DESCRIPTION - Manufacture of solar cell grid line involves forming slurry layer (l1) on a front electrode surface and forming slurry layer (l2) on slurry layer (l1) surface. The slurry layer (l1) and slurry layer (l2) are prepared by charging slurry (a) and slurry (b) into a container provided with parallely-arranged upper nozzle and lower nozzle, processing, drying at 140-160 degrees C and forming slurry layer. The travel speed of lower nozzle and upper nozzle is 125 mm/second. The slurry layer (l1) is formed using slurry (a) prepared by mixing 23 pts. wt. organic vehicle, 70 pts. wt. silver powder, 5 pts. wt. glass powder and 2 pts. wt. ohmic contact additives in weight ratio of 55:30:10:5, and heating at 60 degrees C for 2 hours. The slurry layer (l2) is formed using slurry (b) prepared by mixing 10 pts. wt. organic vehicle, 85 pts. wt. silver powder, 1 pt. wt. glass frit and 4 pts. wt. metallic binder in weight ratio of 53:28:14:5 and heating at 60 degrees C for 2 hours. The organic vehicle comprises terpineol, Butyl carbitol (RTM: slow-evaporating, hydrophilic glycol ether) and/or ethyl cellulose. The silver powder has particle size of 6 mu m. The glass powder is bismuth-silicon-antimony powder.