Introduction  Based on the unique location conditions of Dapeng New District, the technology of Wind Power, Solar Power and Energy Storage can provide multi-energy supplement technology mode for the charging infrastructure.

  Method  In order to ensure the typicality of the benefit analysis, the article selected three representative charging infrastructure sites to construct multi-energy supplement devices. In order to comprehensively analyze the benefit of multi energy complementary model, this paper choosed three dimensions of economy, society and environment to analyze.

  Result  In terms of economic benefit analysis, according to construction scale of the charging infrastructure, this papper built the model of electricity consumption and calculated power usage.In the condition of setting investment internal rate of return, this paper calculates the investment internal rate of return base on the operating income and the total cost. In terms of environmental benefits, this paper measures the clean energy power generation and quantizes energy conservation.At last the benefits of social are analyzed.

  Conclusion  Comprehensive economic, social, environmental and other aspects of the benefit analysis, the use of multi-energy supplement to support the charging infrastructure power supply has a good demonstration.