Energy Internet is regarded as the development form of smart grid in the future by realizing horizontal multi energy complementary and vertical highly coordinated "generation-grid-load-storage". In order to evaluate the effectiveness of regional energy Internet optimization, firstly, the energy sources and energy routers in the regional energy Internet are modeled. Then, the evaluation index of multi energy collaborative optimization is proposed from three aspects of economy, power loss and environmental benefits. Finally, based on a five-node regional energy Internet, the economic index are optimized and calculated, and the results verify the effectiveness of the proposed indexes.