A conductive paste for defogging heat wires of automobile windows contains a silver powder having particle size in the range of about 0.1 to 20 m, a molybdenum compound such as molybdenum silicide or molybdenum boride, a glass frit having s softening point of 730 C. or less and an organic vehicle. The conductive paste can uniformly darken the conductive heat wire regions of the automobile window without producing any harmful substances. Also, it can ensure sufficient bonding strength of lead wires.