The flux and the temperature difference between inlet and outlet of the heat-supply system must be measured when measuring heat flux by heat meter,and then the result can be calculated.The whole process is complex,low accuracy and high cost.To solve these practical problems,we propose a new-type facility based on conservation of energy.Numerical simulation is used to analysis the theory of measurement,it approves that the measurement of the new-type heat meter has nothing to do with the flux.It is one advantage of the new-type heat meter,by which the energy measurement could get ridding of the influence of flux.At the same time,it also simplifies the measuring process and reduces the cost greatly.