The invention relates to the technical field of GIS, in particular to a GIS heat tracing module arrangement optimization method and device based on
finite element simulation, and the method comprises the steps: constructing a three-dimensional geometric model of a GIS structure, and carrying out the setting of a
physical field; establishing a GIS temperature
field simulation model based on the three-dimensional geometric model of the GIS structure and
physical field setting; a heat tracing module parameter scheme is set, and the heat tracing module parameter scheme meeting the parameter evaluation standard is determined based on the GIS temperature
field simulation model; and whether the heating area and the
heating power corresponding to the heat tracing module parameter scheme are optimal or not is judged. According to the method, the GIS temperature
field simulation model is used for conducting steady-state temperature field
simulation on any heat tracing module parameter scheme, the temperature distribution in the GIS after the heat tracing module is arranged is determined in advance, data support is provided for adjusting the heat tracing module parameter scheme, the problem that a dangerous
cold spot area is generated after the heat tracing module is arranged is avoided, and the heat tracing efficiency is improved. And faults caused by SF6
liquefaction are effectively prevented.