Abstract: 【Objective】 In order to clarify the recent occurrence of a species of pathogenic fungi that is closely related to Jujube mosaic disease in Xinjiang.【Method】The pathogen was identified by collecting disease samples, isolating pathogenic bacteria, recovering syndromes, morphological observation and rDNA-ITS sequence alignment.【Result】The spore strains were isolated by some significant mosaic and brown leaf spot samples and abnormal fruit samples. After inoculation of jujube leaves and young fruits with acupuncture, brown necrotic spots similar to the field symptoms were found, and the pathogenicity of them to the leaves and fruits of jujube was determined. The morphological characteristics of the pathogen were basically the same as that of Peyronellaea glomerata, and the homology between the rDNA-ITS sequence of three isolates and that of Peyronellaea glomerata was 99%.【Conclusion】On the basis of morphological and ITS sequence information, the pathogen of the new disease of jujube was identified as Peyronellaea glomerata in Xinjiang.