Investigation showed that BHC residue in soil was characterized by higher persistence in upland soil than in paddy soil, greater ratio of β-isomer γ-isomer of BHC residue in soil and lower residue of BHC in paddy soil. These characteristics resulted from the higher rate of BHC degradation in paddy soil and higher stability of β-BHC in comparision with γ-BHC in soil. Expei-iznent results alsp showed that the amount of BHC residue absorbed by various crops was different. No significant correlation was found between the content of BHC in rice plant and its residue in soil during harvest. However, the content of BHC in peanut was significantly correlatal with BHC residue in soil during harvest (r=0.64,n=21). The degradation of SHC in soil was related to.soil moisture, temperature and organic matter. It was observed that the degradation rate of BHC was increased with the increase of moisture and temperature in soil;appropriate amoant of organic matter promoted degradation rate of BHC in soil.The possible pathway of degradatian of BHC in soil is discussed in this paper.