Such as the erroneous evolvement, which lie in the inscriptions on bones or tortoise shells in Shang dynasty, is great in number and change severely in Zhanguo dynasty.

So far there are 3 hypotheses on the reasons why th e Chinese character Ri(日) of Jin Midi(金日磾) is pronounced "mi", namely the hypothesis of sandhi, the hypothesis of consonant clusters and the hypothesis of erroneous changes of Chinese character forms pr oposed in ancient times.

From the perspective of wrong word,this paper analyses two wrong words of the Wu bamboo slip,revealing the causes of formation in the hope of contributing to the research into the language and words of the Wu bamboo slip.