Taking black walnut standing timber as test material，with different methods of black walnut trunk after peeling and shave their cambium，on peel mouth uniform spraying ABT No.6 150 mg/kg liquid，covering plastic film 5 d，with wire mesh pad linoleum filled circle matrix rotten peanut shell processing conditions，different skin regeneration and shave their formation methods of the trunk once a time root number，root roughness，length，and the influence of secondary root number were studied.The results showed that the approach of peel 10 cm wide，along the zigzag，zigzag spacing between 3~5 cm，along the flat，25 cm above the ground，on each side for 2 cm cambium，shave their remaining cambium，for black walnut backbone to take root was the best skin treatment.