Plug in Hybrid Electric Vehicles (PHEVs) possess the merits of low carbon emissions, high fuel efficiency and long driving mileage, and thus attract more and more attentions. This project propose, an integrated switched reluctance motor (SRM) powertrain topology for PHEVs, which owns multiple driving and battery charging functions with less power electronic devices than traditional topology. In motor driving mode, four driving modes are achieved according to the road conditions. Motoring and braking operations both can be successfully implemented. For battery charging mode, three charging modes are implemented without extra battery chargers. A three channel interleaved boost converter with power factor correction (PFC) capability is constituted by utilizing the SRM windings and integrated converter circuit to charge the traction battery from the grid. An integrated half-bridge isolation DC/DC converter is employed to charge the auxiliary battery from the generator or traction battery. A proof of concept prototype platform is built and experiments are carried out on a three phase 12/8 poles SRM to verify the effectiveness of the proposed integrated drive topology and the corresponding control schemes.