Yen, who has done entomological research with many biologists, is Taiwan's leading Lepidoptera taxonomist. He has recorded and described many moth species previously unknown to science.
跟著許多生物學者研究昆蟲的顏聖紘，是台灣鱗翅目昆蟲分類的佼佼者，記錄、發表了許多飛蛾。