Abstract:This paper reports the GCdetermination of 20 organochlorine pesticidesin Chinesedrugs Flos Ionicerae and Moluodan etc by the present method of Japan for determinaing pesticide residues.The results suggest that except Folium Isatidis,Radix Codonopsis and Sanqi Pian all accord with the for provisions pesticide residues in Japanese foodstufs.