T he contents of total flavo noid in 3 wild species of Pueraria fro m West-Hubei in China were determined by means of UV-spectropho tometry .The result exhibited that 3 .31 %, 2 .67 % and 2.80% total flavo noid are contained respectively in the roots of Pueraria lobata ( Willd.) Ohwi and P .elegans Wang et T ang, as well as in the vines of P .lobata .And it also showed that less than 0.5 % total flavo noid are measured in the roots and the residues of P .thomsonii Benth. So the total flavonoid in the vines of P .lobata are of value to use as new resources .