<jats:title>Abstract</jats:title><jats:p>The new dinorditerpene 14,15‐dinorclerod‐3‐ene‐2,13‐dione (<jats:bold>2</jats:bold>), the eight new clerodane diterpenes <jats:bold>4, 5, 7</jats:bold>–<jats:bold>10, 13</jats:bold>, and <jats:bold>14</jats:bold>, and the new furoquinoline alkaloid <jats:bold>15</jats:bold>, besides thirty known compounds, were isolated from the aerial part of <jats:italic>Clausena dunniana</jats:italic> collected in Xishuangbanna, the south of China. The structures were elucidated by spectroscopic analysis including 1D‐ and 2D‐NMR.