The invention discloses a primer, a probe and a kit for synchronously detecting human herpes virus types 6, 7 and 8. By selecting a new target gene, redesigning a primer and a kit, and optimizing a reaction system, the false positive rate of clinical synchronous detection on human herpes viruses is greatly reduced, the primer, the probe and the kit are good in sensitivity, good in specificity and short in detection time, and the technique can be applied to clinical application and popularization.