This study develops long-short-period monitoringand control technology, which can be applied to various devices for tension control. Thelong-period monitoring and control technologyproduces average tension on the product by controlling thespeed ratio of front and rear rollers. The short-period monitoringand control technology produces different levels of vibration for the product by controlling the standard deviation (a force on the product). Taking emulsification and swelling tank of washing machineas anexample, the long-period monitoring and control technology promotes efficiency of emulsification and swelling by controlling the speed ratio of guiding rollers; the short-period monitoring and control technology enhances the washing efficiencyby controlling the standard deviation. The experimental results indicated that the operation speed could be increased by 26.7% through ensuring the standard of emulsification and swelling.