In order to explore repair capacity of biochar application on lead-contaminated soil, the corn straw carbon (CS), peanut shell carbon (PS) and silver fir charcoal (SF) were added in lead contaminated soil in the proportion of 1%, 3%, 5%, respectively. The samples were obtained after waterlogged incubation for 5, 15, 30 and 75 days and then analysed the changes of lead species distribution and soil properties. The results showed that application of biochar significantly increase the pH values and soil organic matter content. Compared with the treatment without biochar, the treatments of adding CS, PS, and SF after cultivation , the pH values of contaminated soils increase 0.43~1.32, 0.45~1.01, 0.33~0.72 units, respectively, while organic matter increased 56.84%~277.89%, 14.74%~92.63%, and 35.79%~128.42%, respectively. Lead species distribution tend to be stable along with the incubation time. Acid soluble form and reducible form contents of lead decrease, whereas residual form contents of lead increase. The acid soluble form contents of lead with the application of CS, PS, SF decrease by 19.20%, 17.55%, 6.66% ,respectively (average). The application of biochar effectively decrease the bioavailability of lead, and its decreasing rate increase gradually as the application of biochar rate. With the same amount of biochar addition, the remediation effect of corn straw carbon is the best.