The present invention provides device and method for forming a thin film pattern which can maintain an extent of wetting of a printing liquid at a proper state without time dependence. The device for forming a thin film includes a printing liquid supply unit for supplying printing liquid, a cliché having a depressed pattern and a relieved pattern for patterning the printing liquid, a printing roller for having the printing liquid supplied from the printing liquid supply unit thereto coated thereon and being rolled on the cliché and the substrate, and a solvent supply unit for supplying a solvent to the printing liquid before the printing liquid coated on the printing roller is brought into contact with the cliché.