Abstract: The 7×7 dialled analysis in F1 generation without reciprocals and selfed-parents in 10-year-old Chinese fir plantation revealed that the variances due to gca were highly significant for all the eight traits. The variances due to sca were also highly significant for three characters(compression strength parallel to grain,coefficient of radial shrinkage, fibre length).The estimated components of gca variances were higher in magnitude for most of the traits,indicating the predominance of additive gene action for these traits. The range of broad heritability for these eight wood traits was 0.13～0.86 and for narrow heritabilities 0～0.73. Parent Rong 5 of density,bending strength of wood and modulus of elasticity for bending strength,Parent Rong 1 for coefficient of radial shrinkage and compression strength parallel to grain, Parent Gao 37 for coefficient of tangential shrinkage and coefficient of volume shrinkage,Parent Qing 70 for fibre length were best general combiners respectively.The crosses Lian 5×Gao 37,Rong 1×Yan 11 for coefficient of radial shrinkage, the cross Rong 1×Rong 5 compression strength parallel to grain and the crosses Rong 1×Rong 5 and Qing 70×Gao 37 for fibre length were significant for heterosis.