Abstract: In order to identify the pathogen species of broad bean root rot in Dabancheng District of Urumqi City,and to carry out targeted control,this study collected pathogen samples from several broad bean producing areas in Dabancheng District of Urumqi City,and then separated and purified them,compared the disease symptoms,and combined with morphological and molecular biological identification technology to clarify the classification status of pathogens.The results showed that 8 strains were obtained after isolation and purification of pathogenic bacteria.Through the observation of colony structure and mycelium morphology of pathogenic bacteria and molecular biological methods,it was confirmed that Fusarium solani,Fusarium incarnatum,Rhizoctonia solani and Alternaria tenuissima were the pathogenic bacteria of broad bean root rot.Faba bean root rot in Dabancheng district is a complex infection of many pathogens.Therefore,comprehensive control measures should be taken in Dabancheng District,including crop rotation,seed disinfection,soil colony structure improvement,film mulching,furrow irrigation,machine on demand and so on.