Abstract: 【Objective】The colonization of arbuscular mycorrhizal fungi（AMF）and dark septate endophytic fungi（DSE）in the roots of three Artemisia argyi varieties（mengai,wanai and wild Artemisia argyi）and their interaction with soil physical and chemical factors were elucidated.【Methods】The colonization rates of AMF and DSE in roots of three Artemisia argyi varieties were analyzed by microscopy,and the correlation between AMF and DSE and soil physical and chemical factors was analyzed.【Results】The colonization rates of AMF and DSE were 78.44%,75.22%,75.86% and 27.22%,33.75%,27.67% respectively in three Artemisia argyi varieties roots. AMF colonization rate was significantly negatively correlated with soil alkali-hydrolyzable nitrogen content（P<0.01）;DSE colonization rate was positively correlated with soil moisture content（P<0.05）,and significantly negatively correlated with alkali-hydrolyzable nitrogen content（P<0.01）.【Conclusion】The colonization of root symbiotic fungi（AMF and DSE）in three Artemisia argyi varieties was different and correlated with soil physical and chemical factors.

Key words: Arbuscular mycorrhizal fungi, Dark septate endophytic fungi, Artemisia argyi, Soil physical and chemical factors, Correlation analysis