| Summary: | A new lignan (<b>1</b>) and a new phenolic glycoside (<b>2</b>), together with eighteen known compounds (<b>3</b>–<b>20</b>), were isolated from <i>Oxytropis ochrocephala</i>. Their structures were unambiguously elucidated by spectroscopic techniques (UV, IR, 1D and 2D NMR), and HR-ESI-MS analysis, as well as by comparison with the literature. The insecticidal activity of these compounds was evaluated against <i>Tetranychus urticae</i> Koch, and the results showed that compounds <b>3</b>, <b>9</b>, <b>15</b>, and <b>16</b> had a weak inhibitory effect at a concentration of 1 mg/mL after treatment for 24 h.
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