Abstract: To purify dioxin-contaminated soil by bioremediation with the fungi screened from nature, microbial degradation of 2,3,7,8-Tetrachlorodibenzo-p-Dioxin (2,3,7,8-TCDD) was conducted with two fungi (PL1 and 267) screened from nature. The two fungi degraded 22 to 62% of 2,3,7,8-TCDD. Maximum degradation (62%) was obtained when PL1 was incubated for 30 days at 1 ng. Furthermore, bioremediation of 2,3,7,8-TCDD in soil with PL1 was conducted. The PL1 degraded 27 to 51% of the dioxin at 1 and 10 ng g-1 soil in 15 and 30 days, respectively. Maximum degradation (51%) was obtained when PL1 was incubated for 30 days at 1 ng g-1 soil. In addition, 2,3,7,8-TCDD was indeed degraded by the fungi, because 4,5-Dichlorocatechol considered to be an intermediate was detected among the reaction products.