Two new pheophytins, with peroxide functionalities on ring E, were isolated from Bidens pilosa. This plant is a popular Taiwanese folk medicin. The roots of Rhus javanica was used as herbal medicine. Two new phenol glycosides and three new triterpenes were isolated and established their structures. . Assay-guided islation from the bran of Coix lachrymal- jobil var. ma-yuen give four new lactam compouds, which showed anti-proliferative effect of lung and colon cancer cells. The stems and leaves have been used as folk medicines to relieve toothache and sore throat. Six new butanolides were isolated from the stem bark of Litsea akoensis. One known compound exhibited cytotoxic activity. Garcinia multiflora, a dioecious tree, is used as a traditional Chinese medicine. Except twenty-six compounds, one novel skeleton compound, garcinial one were isolated and elucidated, Six new compounds were isolated from the fruiting bodies of Antrodia camphorate. Four of six compounds possessed anti- inflummatory activities. Taiwania cryptomerioides is a good and important building material. We reinvestigated its bark, and seven new diterpenes were isolated and identified. The extract of the root of the Derris laxiflora was used traditionally as an insecticide and piscicide. Seven new compounds were isolated from its root’’s extractions.