Abstract: The aim of this paper was to study the extraction efficiency of different extracting agents for heavy metals in different types of soil. Three extracting agents (DTPA, HCl, EDTA) were used to extract heavy metals (Zn, Pb, Cd, Cu) in yellow paddy soil and purple paddy soil, and the extraction efficiency of them were compared. The results showed that, it had significantly difference in extraction amount and extraction rate of different extracting agents to the different types of soil. The average content of Zn, Pb, Cd, Cu which were extracted by DTPA were 135.88 mg/kg, 167.20 mg/kg, 5.09 mg/kg, 17.63 mg/kg in paddy soil, respectively. The average content of Zn, Pb, Cd, Cu which were extracted by HCl were respectively 244.79 mg/kg, 299.97 mg/kg, 7.74 mg/kg, 28.75 mg/kg in paddy soil. EDTA extracted Zn, Pb, Cd, Cu from paddy soil, the average content of them were 220.31 mg/kg, 490.33 mg/kg, 7.22 mg/kg, 35.46 mg/kg, respectively. The extraction amount of Zn, Cd of three extracting agents were found to be of the order HCl > EDTA > DTPA, while that of Pb and Cu were EDTA > HCl > DTPA. From the extraction rate of elements perspective, besides the sequence of extraction rate of elements was Cd >Cu >Pb >Zn of which were extracted by DTPA in yellow paddy soil, others followed the sequence Cd >Pb >Cu >Zn. From the view of different types of soil, the extraction rate of heavy metals in yellow paddy soil followed the order EDTA > HCl > DTPA, while that of Zn, Pb, Cd and Cu were HCl > EDTA > DTPA, EDTA > HCl > DTPA, HCl > EDTA > DTPA, EDTA > HCl > DTPA in purple paddy soil, respectively. In short, the extraction rate of Pb and Cu in two type paddy soils were found to be of the sequence EDTA > HCl > DTPA. In summary, when the availability of heavy metals of soil was studied, different types of soil should use different extracting agents. Meanwhile, the results suggested that the accumulation of heavy metals of brown rice might be predicted by extraction amount of suitable extracting agent.