Abstract:The wheat variety Abbondanza was one of the Chinese differential hosts for Puccinia striiformis f.sp. tritici. Once determined the genetic characteristic and resistant genes of Abbondanza, it will be convenient to develop the study of biological specialization of stripe rust and analysis of cultivars resistance on a molecular level. The genetic and resistant characteristics of Abbondanza were analyzed using different races (isolates) identification combining the methods of classic genetics, allelic analysis and monosomic analysis. The results showed that Abbondanza has two resistant genes against the isolates Su-1 and 79009 in seedling stage under normal temperature, inheriting by nucleolus.The two resistant genes to 79009, temporarily designated as YrAbb1 and YrAbb2, were located on 3B and 7B chromosomes respectively and were different form the known resistant genes to stripe rust.