The titles of the original sutras were "Buddha's Immeasurably Pure Sutra on the Equal Enlightenment" (Volumes 1 to 4) translated by the early monk Lokaksema (also known as 支婁迦讖 Zhī Lóujiāchèn in Chinese and Shirukasen in Japanese) in the late Han Dynasty.
原文の経題の表記は、『佛説無量清淨平等覺經卷第一』、『佛説無量清淨平等覺經卷第二』、『佛説無量清淨平等覺經卷第三』、『佛説無量清淨平等覺經卷第四』後漢月支國三藏支婁迦讖譯。