The Energy Hub (EH) is a carrier for realizing the complementary use of multiple energy sources. There are many uncertain factors in the park-level energy hub, including renewable energy output fluctuations, load forecast deviations, unit failures, external environment and user energy consumption laws. This paper builds an energy hub model of a business park that includes a combined heat and power system, heat storage equipment, and electric bus battery swapping station, and studies the economic operation of the park's EH under uncertain factors. Taking the minimum total operating cost as the objective function, this paper proposes an economic dispatch model of the park energy hub that takes into account the chance-constrained planning. The gas turbine thermal power reserve output and the reserve power market power purchase are set as energy hub opportunity constraints. The model built in this paper is a typical 0-1 mixed integer linear programming problem, which is solved with the aid of the Matlab/Yalmip/Cplex solver. The example analyzes the impact of different operating scenarios and confidence levels on the EH economic dispatch of the park. The results show that the model established in this paper can coordinate the operation of multiple energy sources, and can provide a reference between the risk and the economy for scheme decision makers. This work is supported by the Youth Fund of National Natural Science Foundation (No. 51907138) and Applied Basic Research Foundation of Shanxi Province (No. 201801D221362).