This application discloses a session information processing method and device, and a storage medium. The method includes: extracting a to-be-analyzed sentence and preceding sentences of the to-be-analyzed sentence from a session; performing word segmentation on the to-be-analyzed sentence and the preceding sentences, to obtain a first feature set including a plurality of first features; extracting a second feature set including one or more second features from a first word set corresponding to the to-be-analyzed sentence and a second word set corresponding to the preceding sentences, one second feature including a phrase or sentence including a first word and a second word, the first word being one or more words in the first word set, and the second word being one or more words in the second word set; and determining, according to the first feature set and the second feature set, a sentence category to which the to-be-analyzed sentence belongs.