The invention relates to a heating and fixing device for base plate, comprising support plate with heating part in it for supporting heating base plate, of which on the thickness direction blowholes are set; vacuum layer set at one side where the support plate is far from the base plate, in which a cavity is set and the cavity is connected with vacuum device, of which the cavity is connected with blowholes of support plate; heat insulation layer set at one side where the vacuum layer is far from the support plate to prevent heat quantity generated by support plate diffusing. Because heating part is set in the support plate, the base plate can be preheated before ink-jet; after ink is jetted to the preheated base plate solvent in ink is vaporized partially. By other methods ink drying time can be shortened compared with prior technology so that improve the speed of manufacturing colored filtering piece.