Abstract: 11 plus families were selected in 2010 from Cunninghamia lanceolata seed orchard in Suichang, Zhejiang province, for container seedling cultivation with one control in March, 2011 in Fuyang of the same province. Determinations of height and ground diameter were implemented in December of the same year. 9 allozymes were selected by polyacrylamid gel electrophoresis method using 10 embryosperms of 11 tested families. Adaptive distance model by Smouse(1986)and Bush (1987) was used, regression models between growth traits and allozyme genotypes had been established. The results showed that seedling height and ground diameter had great differences among families, five allozyme loci had evident correlation with seedling height growth and 5 ones hade significant correlation with ground diameter. The experiment proved that different allozyme loci had different marginal effects on fitness. The result demonstrated that allozyme analysis could be used for the early selection of parents in seed orchard of C. lanceolata.