Abstract:The tests of wood properties and pulping experiment were carries out with the 5-year-old Eucalyptus ABL No.12 grown in Guangdong province. With the weighted mean of the BH disc as the unit,the average values of the following properties were: 90μm of tangential diameter of vessels, 16N/mm2 of pores number, 15N/mm of rays number, 0. 868mm of fibre length, 2. 9 μm of fibre wall thickness, 14. 0 of vessels percentage, 29. 8 of parenchyma percentage,56. 2 of fibre percentage,and 0. 577 of basic specific gravity. The radial variation of these properties was investigated. The wood belonged to a medium class of strength, and contained 77. 62% of holocellulose and 25. 09% of lignin. A pulping experiment of alkali-AQ process showed that it was easy to pulp,with 46. 92% of yield of coarse pulp and 73. 8% of bleaching degree, and the sheet formation was good,with 4. 58kPa. m2/g of burst index and 7. 53mN. m2/g of tear index.