He graduated from Beijing University shortly after the Communists occupied Beijing. Hishome in Manchuria had long before fallen to the Communist forces, and many classmates and friends had already left Beijing.
其實，劉紹唐在那個時候已有相當名氣，他在共產黨進入北京不久後剛好自北大畢業，東北家鄉早已淪陷，許多同學、朋友也都已逃離北京。