The establishment of the Beijing Free Trade Zone（FTZ）is one of the important strategic initiatives for enterprises to “go global” in the new era. With the continuous promotion of reform and opening up，its series of innovative measures as a pilot project have had an important impact on enterprises’ foreign trade. Based on this，this paper firstly compares the basic situation of the establishment of the Beijing FTZ，including its establishment and strategic positioning，spatial layout and planning，related measures and guarantee mechanisms，etc. On this basis，it also analyses the specific impact mechanisms of the establishment of the FTZ on enterprises’ foreign trade. Finally，based on the findings of this paper，relevant suggestions are put forward at both government and enterprise levels. The study has implications for Beijing in creating a new situation of opening up to the outside world，promoting the development of enterprises’ trade and improving the quality of trade.