The invention provides a heat metering share device through a temperature area method. The device is characterized by including room temperature sensors, temperature gatherers, electric valves, a power supply, a building heat meter, a gathering calculator and a data storage server, wherein the room temperature sensors are fixedly disposed in rooms of users, the room temperature sensors are prevented from being moved and have a temperature sharp drop identification function, the temperature gatherers are used for gathering and storing indoor temperature data of users, the electric values are normally open valves, the building heat meter is used for metering the heat consumption of a whole building, the gathering calculator is used for gathering information and sharing heat, and the data storage server is mainly used for transmitting and storing information. The heat metering share device is widely applicable, and can be used for heat metering for separate users on all central heating occasions.