Under the policy background of “double carbon”, fully exploring the potential of low-grade heat source and improving the level of clean energy supply in the park is the focus of current research. This paper considers low-grade heat source endowment and load demand in the park, puts forward a kind of park level distributed clean energy supply strategy which means a distributed energy hub station is established by adopting the heating and power supply mode of “low-grade heat source with electric heat pump and waste heat generation equipment”. Taking the superior energy network as energy supply supplement, energy hub station flexibly adjusts the system energy supply parameters according to the real-time load demand of users. In order to realize the above energy supply strategy, firstly, a multi-objective optimization method of park-level energy supply cluster division is proposed by comprehensively considering the endowment of energy and load resources, geographical location and matching relationship. Secondly, the electric-heating cooperative planning model considering the constraints of electric and heating power flow and the output of electric-heating coupling equipment is proposed to optimize the equipment capacity allocation of energy hub stations. Finally, the piecewise linearization method is used to simplify the model. The results of an energy supply demonstration park to be planned show that the proposed strategy achieves efficient utilization of local low-grade heat source, and it has strong coupling relationship between electricity and thermal energy flow. Compared with the conventional electric-heating cooperative energy supply method, and the primary energy consumption and carbon emission level of the park are reduced.