In this article we did comparative study about the character of Ke Jilben, who is reflecting in the Khalka and Kalmuk versions of “Jangar” epic, propounded the proposal that between the kalmuk “Jangar” epic singer Muukobgun’s chapters and kalka versions might be one origin. Also mentioned the task and skill’s difference between the character of Ke Jilben, reflecting in khalka and kalmuk versions and did above conclusion. Between the character of Ke Jilben who is performing as a “judge” hero in khalka version and the character of Shihihutug who is performing as a “solicitor” in “Mongols secret history” have tradition’s concern. In the history of Mongolian empire first created the “lawsuiter” position in 13th century. This case is formatted the main condition of Ke Jilben’s character. At the end of article we confronted the name’s versions of Ke Jilben in the khalka and kalmuk versions and mentioned that the name of “jiin jilben” is very popular nomination in khalka and kalmuk territories.