The invention discloses a method for preparing conductive paste for a thin-film switch. The method is characterized by comprising the following steps of: (1) dissolving resin into an organic solvent by mass percent, then thermostatically heating to 70-90 DEG C until the resin is completely dissolved, and filtering to obtain an organic carrier; (2) adding nickel powder and a conducting material into the organic carrier and uniformly stirring to prepare a mixed solution; (3) adding flaky metal powder to the mixed solution by the mass percent, meanwhile, adding a thickening agent, a dispersing agent and the organic carrier, and mixing in a planetary stirrer; and after the mixture is ground through a three-roller grinder, adding the organic solvent or the organic solvent and the organic carrier, and uniformly mixing; and filtering to obtain solver-nickel-carbon low-temperature conductor paste. In the invention, the addition proportion of the raw materials is changed, the viscosity and the conducting property of a product as well as the leveling property and the printing property of the paste can be regulated; moreover, the paste can be quickly dried and solidified at constant temperature under a quick drying condition to obtain a product with good electric property; and the cost of the product is reduced.