Conductive paste mainly by the conductive filler, coupling agent, additives, solvents and other components of a functional ink, mainly in the printing of carbon paste, silver and other conductive ink. Silver thick film circuit conductive ink is silver powder and thermoplastic resin as the main component of a liquid-type ink, in PET, PT, PVC sheet can be used on, have a strong adhesive force and hiding power, low temperature curing, controllable electrical conductivity and low resistance values.