The invention belongs to the technical field of electric power, and particularly relates to an integrated energy system steady-state modeling method based on an energy concentrator. The innovation ofthe method is as follows: 1) the method can be used for analyzing trans-regional, regional and user-level comprehensive energy systems, and has better applicability, universality and expandability; 2)the supply and demand characteristics of various energy sources are highly abstracted into energy source input and output balance consideration, and energy source coupling characteristics are described through elements in a coupling matrix, so that unification of physics and mathematics is realized; 3) the energy concentrator reflects the idea of energy equivalence, the energy coupling quantity can be converted into the output of a single energy system through an energy matrix, the decoupling of the coupling system is further realized, and the complex problem is simplified; and 4) the model not only can perform abstract modeling on the existing comprehensive energy system, but also can be used as an energy autonomous unit or a generalized node in an energy network to provide theoretical guidance for planning analysis of the comprehensive energy system.