The drying rate of Andrographis paniculata in the dryer is significantly higher than that of the natural sun dryer. The variations of moisture of Andrographis paniculata was shown in Fig. 9. After two days of drying, the remaining weight of Andrographis paniculata was about 25 kg. The quality of dried Andrographis paniculata in terms of color, texture and taste is as good as high quality dried Andrographis paniculata in markets.