Abstract: The experiment was conducted to study the growth and fecundity of Eisenia foetida used to treat the chook manure with different pre-compost. The results indicate that the growth and the reproduction of Eisenia foetida in chook manure pre-composted for 7 days are better than those in the untreated manure; the highest daily growth rate reaches 0.08 in the chook manure pre-composted for 28 days; the highest daily propagation rate reaches 0.13 in the chook manure pre-composted for 35 days. The treated chook manure bears lower C/N ratio and NH₄-N content, higher NO₃-N content than the untreated one.