对浙江省开化林场９年生无性系杉木和实生苗杉木木材的物理力学性质进行了测定比较。结果表明，在测定的１５个无性系中，有的优于实生苗杉木，有的次于实生苗杉木。无性系杉木材的平均气干密度为０３４０ｇ·ｃｍ－３，基本密度０２８０ｇ·ｃｍ－３，径向干缩系数０１３１％，弦向干缩系数０２１７％，体积干缩系数０４０１％，抗弯强度４４３５５ＭＰａ，抗弯弹性模量８２９６ＧＰａ，冲击韧性３２９５０ｋＪ·ｍ－２。 The physical and mechanical properties of 9-year-old clonal fir and seedling fir woods in Kaihua Forest Farm of Zhejiang Province were measured and compared. The results showed that among the 15 clones tested, some were better than the seedling fir and some were secondary to the seedling fir. The average air-dry density of clonal fir wood was 0340g · cm-3, the basic density was 0280g · cm-3, the radial shrinkage coefficient was 0131%, the chord-wise shrinkage coefficient was 0217% The shrinkage coefficient is 0401%, the flexural strength is 44355MPa, the flexural modulus is 8296GPa, the impact toughness is 32950kJ · m-2.