A dedicated device for plasma collection stations, used together with the disposable centrifugal plasma separator for collecting and separating human plasma. The machine integrates plasma collection, centrifugal separation and return-flow control, and works with the disposable centrifugal plasma separator and sodium citrate anticoagulant solution to achieve closed, safe and efficient collection of source plasma. It holds a Class III national medical device registration certificate, with an annual capacity of 150 units.