Abstract: Postharvest diseases of fruits caused by fungal pathogen infection resulted in significant economic losses.In the study of postharvest diseases control of fruits,the resistance of fruits induced by the elicitors had gradually become a safe and efficient method,which is the current research hotspot on postharvest pathology and physiology.Elicitors could be divided into biotic and abiotic elicitors according to their origin.Moreover,pathogenesis- related proteins of fruits could be expressed by elicitors induction,which made fruits produce resistance to the fungal pathogens.Pathogenesis- related proteins were transcripted and expressed by pathogenesis- related genes of fruits that were located and cloned in many fruits in some reported articles,which afforded clear evidences of certain PR genes in particularly.However,it was noted that not single gene worked in postharvest fruits,but integrated and systematic genes.They were known to have the genetic property and regulated by various factors.Therefore,the study of PR genes in postharvest fruits had been given important research focus.As RNA high- throughput sequencing technologies are applied in the transcriptome study,the global PR genes on the transcriptional level were researched,which showed that some genes may be up or down.This article highlighted the inductive progress on PR genes and the transcriptome technology applied on transcriptional level of PR genes in postharvest fruits.