The 65-Node Thermoregulation-Model was developed, based on Stolwijk model. The model has 16 body parts. Each body part consists of core, muscle, fat and skin. In addition, the model has a central blood compartment. Convective and radiative heat transfer coefficients were derived from the thermal manikin experiments. Under steady state condition, mean skin temperature; skin wet tedness and SET^* agreed well with those by 2 node-model. This model can predict fairly well for. skin temperature distribution under thermal neutrality. Under transient condition, trends of mean skin temperature and evaporative heat loss were similar to the subject experiment by Stolwijk.