The heat transfer is investigating in the heat protective composites under conditions of the arbitrary heat loading. The investigation is based on the first obtained analytical solution of the anisotropic heat transfer problem with the general type anisotropy. The influence of angle orientation of the thermal conductivity tensor main axes as well as anisotropy power on the heat transfer is analyzing. It was shown that it is possible to canalize the heat flux in the anisotropic heat protection in the required direction with change of the thermal conductivity tensor characteristics. It gives a possibility to rule the amount of the external heat flux, for example, from aero-gas-dynamic flows.