The word ”Yi” appears in ”Confucian analects” a total of 209 times. Usage of the word ”Yi” serves as the preposition 98 times, nearly half the total (47.85%). The word ”Yi” is used as a notional word in ”Confucian analects” (verb), also as a function word (preposition, conjunction). The notional usages are few, the function word usage accounts for the majority (above 63.16%). We conclude the empty degree is quite high for the word ”Yi” in ”Confucian analects”.