The drip irrigation technology can greatly save freshwater resources, effectively improve the output of agricultural products, shorten time to market, and reduce the costs of fertilizer, pesticide and labor, so it has a broad prospect of application. The double position molding technology of labyrinth type drip irrigation tape, which four tapes out of one molding equipment (four per one), is presented in this paper. And the double station molding device is designed. The experimental results show that the molding device has stable size and high quality. Compared with the traditional single position molding device, it has higher molding efficiency, lower cost of production, and needs lesser labor.