Leaf rolling is an important morphological trait in wheat (Triticum aestivum L.), strongly correlating to photosynthesis, transpiration, and respiration, especially in abiotic stress conditions.  Identification of quantitative trait loci (QTLs)/genes underling rolling leaf is essential for wheat breeding.  In this study, one EMS-induced mutant Y536 was isolated in Nongda3753 background with extreme abaxial rolling leaf.  The F₂ and F_2:3 populations derived from a cross between Jing411 and mutant Y536 with contrasting leaf rolling morphology were developed to map locus controlling leaf rolling.  A public SSR marker was isolated on chromosome 6DL that held a high linkage level with leaf rolling index (LRI).  Quantitative trait locus (QTL) analysis revealed a stable QTL associated with LRI, named QLRI.cau-6D, which explained 7.69 to 10.86% of the total phenotypic variation and had LOD scores ranging from 10.00 to 13.32.  TraesCS6D02G237000 (TaHDZIV-D1) was the priority candidate gene according to coding sequence differences between two parents and gene functional annotations.  Consistently, knockout of TaHDZIV-A1/B1/D1 in common wheat line ‘JW1’ significantly increased LRI compared to the wild type, as well as overexpression of TaHDZIV-D1 in ‘JW1’ significantly decreased LRI until opposite direction.  Moreover, genetic evidence suggested that a dose-dependent manner in TaHDZIV-A1/B1/D1 affects leaf rolling.  Collectively, these findings provide a novel and recent insight into the genetic base of leaf rolling in common wheat.