The screen-printing paste was prepared with terpineol and ethyl cellulose as raw materials, with the mass of ethyl cellulose accounting for 5% of the total mass of the solution. The solution was stirred in a water bath at 80 °C until the ethyl cellulose was completely dissolved, then removed and cooled to room temperature. To achieve a good printing quality, the preparation of the slurry needs to ensure that the solid content is as high as possible. The Ba0.68Sr0.32TiO3 powder and solution were weighed in a mass ratio of 7:2.95, and 0.5% triolein was added as dispersant, followed by ball milling for 24 h to prepare the slurry.