The dynamic energy release characteristics of the PTFE-based energetic liner are related to the damage effect of the jet to the target. In this paper， the dynamic overpressure of energetic and aluminum jets in a quasi-closed chamber was measured by static explosion test. The jet energy release and energy release efficiency were obtained by theoretical calculation. The results showed that the energetic liner underwent a deflagration reaction during the forming process， and the overpressure peak of the energetic jet can be increased by 3 times to 4 times compared with that of aluminum jet. For PTFE/Ti energetic liner， in the content range of 0% to 70%， as the tungsten content increased， the jet energy release decreased. But the energy release efficiency was improved due to the increased explosive driving load and the intensified friction between tungsten particles and active metals. For PTFE/Ti energetic liner， in the mass range of 13-30 g， as the mass of the liner increased， the jet energy release was improved. But the energy release efficiency dropped due to the decreased forming pressure of the penetrator.