Thinopyrum á. L?ve， is one of the more widely used wild resources in the genus Triticum L.， and an important donor source in wheat genetic improvement and germplasm innovation. The creation of Trititrigia Tzvelev began in the 1920s， which refered to the introgression of chromosome or genome genetic components of Thinopyrum á. L?ve into common wheat through distant hybridization， including Trititrigia Tzvelev （partial） amphidiploid， alien addition line， alien substitution line， translocation line and introgression line. The Trititrigia Tzvelev amphidiploid （partial） were mainly octaploid Trititrigia Tzvelev （AABBDDXX， 2n=8x=56） and hexaploid Trititrigia Tzvelev （AABBXX，2n=6x=42）. Most of the chromosomes （XX） from Thinopyrum á. L?ve were mixed chromosomes （heterologous chromosomes）. Since the 1950s， the distant hybridization between wheat and Thinopyrum á. L?ve has been developed in China， which was outstanding in the research of wheat disease resistance and the creation of new germplasm， on the basis of which a series of high yield and good quality wheat varieties have been cultivated. During the creation of Trititrigia Tzvelev， Thinopyrum intermedium （Host） Barkworth & D. R. Dewey and three species of Thinopyrum elongatum （Host） D. R. Dewey × ponticum （Podp.） Barkworth & D. R. Dewey） had the characteristics of cold resistance， drought resistance， saline-alkali resistance and resistance to a variety of wheat diseases and insect pests， so they have become the main parent sources of Trititrigia Tzvelev and had the widest range of application. This paper summarized the research progress of the creation and application of Trititrigia Tzvelev from five parts， in order to provide scientific basis for the research and utilization of Trititrigia Tzvelev and the innovation of wheat genetic resources.