Using the drying power of Houttuynia cordata Thunb as the raw material, the comprehensive extracting technology of flavonoid and polysaccharide in Houttuynia cordata Thunb was studied. The results were as the follows:the optimal extraction technology condition was: firstly the Houttuynia cordata Thunb material was dealed with microwave, and its technology parameters were, the ratio between the weight of Houttuynia cordata Thunb and water was 1:25, microwave power was small, dealing-time were two minutes; se...