Abstract:High voltage pulse electric field is one of the most advanced nonthermal food technologies，with a se－ ries of attractive advantages： high efficiency，low treatment temperature， good preservation effect for the color， flavor and nutrients of original food and low energy consumption. Sterilization mechanism of high voltage pulsed electric field， the main factors affecting its bactericidal effect and the influence on the liquid food quality have been introduced in this paper，and its application prospect on food quality has been also summarized.