This paper aims to establish a triple fluorescence quantitative PCR method for the simultaneous detection of porcine epidemic diarrhea virus(PEDV),porcine rotavirus type A(PoRVA)and porcine deltacoronavirus(PDCoV).Primers and probes were designed for PEDV-N gene,PoRVA-VP6 gene and PDCoV-M gene,and their performance was evaluated after the conditions were optimized,and compared with commercial kits.The results showed that the triple RT-qPCR method established in this study had good specificity and did not amplify positive nucleic acids such as P...