Line 02428h derived from the somatic cell culture of the semi-dwarf line 02428 was a recessive tall mutant in rice (Oryza sativa L.).Plant height of the mutant 02428h was controlled by eui gene and sd-1 gene. An F₂ population developed from a cross between 02428h and Nanjing11 was used to map eui gene. The SSR marker RM3673, which was published in Gramene and RM0012 which was designed based on the bacterial artificial chromosome(BAC) in NCBI, was linked to eui gene in the order of RM3673-eui-RM0012 with genetic distance of 0.3 cM and 1.0 cM, respectively. These markers can be used in the molecular marker assisted selection(MAS) of eui gene.