Small size, compact configuration, high rotating speed and short length rotor， and the inclemency of the working environment that are the characteristics of the small aeroengine. Based on these characteristics, some special technique difficulties in the heat transfer of the small aeroengine are presented which include the anti-icing of intake system and the heat transfer of centrifugal compressor, combustor, the disk of the turbine and the blade/vane of turbine. Finally, the existing technique level is presented and further development of the heat transfer field of small aeroengine in China is analyzed.