In response to the national strategic goals of “carbon peak” and “carbon neutrality”, this paper aims to solve the problems of high carbon dioxide emission, low energy efficiency, low consumption rate of new energy and poor source-load interaction in energy-consuming parks. Based on the above problems, this paper constructs three differentiated working condition scenarios, adds hydrogen-electricity coupling equipment in the integrated energy system of the high energy-consumption park, adds hydrogen doping of gas turbine and demand response of enterprises in the park on the basis of the conventional model, constructs a multi-objective scheduling optimisation model of the high energy-consumption park, which takes into account the economy, energy efficiency, and carbon emission, and builds a simulation example. The results show that the environmental friendliness is optimal in the case of isolated grid operation, the energy efficiency is optimal in the case of grid-connected operation when only purchasing electricity, and the economy is optimal in the case of allowing the surplus to be fed into the grid.