In　this　paper,　the　main　idea　and　control　block　structure　of　the　parallel　electric　assist　control　strategy　have　been　given.　Then,　this　control　strategy　is　applied　to　an　given　hybrid　electric　car　and　this　car　is　simulated　using　ADVISOR　software.　The　simulation　results　of　the　working　process　and　vehicle　performances　are　deduced　and　analysed.　Finally,　the　control　effect　and　advantages　of　the　parallel　electric　assist　control　strategy　have　been　given　by　comparing　the　performances　of　the　hybrid　electric　car　with　conventional　cars.