To improve the wettability of silver powder in organic vehicle, a measurement of the permeating height, according to the Washburn equation, has been employed to evaluate the wetting angle of silver powder in the following three solvents, Dipropylene glycol n-propyl ether, Diethylene glycol n-butyl ether acetate and α-Terpineol. The change of the wetting angle has been observed when four dispersants, n-Caprylic acid, Triethanolamine, Sorbitan Trioleate, and BYK182 were added in different solvents. The results show that α-Terpineol has the best wettability for silver powder. As a kind of nonionic polymer surfactants, BYK182 improves the wettability in the solvents of Dipropylene glycol n-propyl ether and Diethylene glycol n-butyl ether acetate