The invention discloses a choice question error reason analysis method suitable for adaptive teaching, and relates to the field of education and teaching. The method comprises the steps of setting oneor more options of a choice question as the correct options; setting the remaining options as error options; according to the question stem of the choice question, determining the names of the knowledge points associated with the question stem, according to the question stem corresponding to the error option, obtaining the knowledge point names associated with the question stems, according to thecontent of the error options, obtaining the number of a choice question inputted by a user, judging whether the options corresponding to the numbers are correct options or not; if not, according to the question corresponding to the options, obtaining the knowledge point names, the ultra-nano knowledge point names and the ultra-nano knowledge point contents associated with the question stems, anddisplaying the numbers, the ultra-nano knowledge point names and the ultra-nano knowledge point contents; and carrying out the semantic analysis on the ultra-nano knowledge point names and the ultra-nano knowledge point contents by utilizing a general language model, so that a large amount of manpower is saved, and the training effect on the students is improved.