The invention discloses a system and a method for controlling real-time continuous data in a packet switched data flow. The invention relates to a method for controlling real-time continuous data in a packet switched data flow including a data packet. The control of the real-time continuous data is executed through retaining the data packet of the packet switched data flow, and the continuity of the data is disturbed after the real-time continuous data is received. The invention further relates to a system for controlling the real-time continuous data, use of the system in a packet switched data network, and a real-time continuous data service provided by using the method.