The mechanical seal support system mainly includes a pressure control system, a temperature control system, an impurity cleaning system, a fluid replacement or a blocking system. It is designed, manufactured and inspected according to GB/T150 and the piping components and instrument configurations is in accordance with AP1682. It improves the working environment of mechanical seals by supplying barrier fluid and dissipate friction heat of seal faces in time and monitor the operation of seals with alarm. Customized designing and manufacturing is available.