Ciphertext index information processing method and device and computer equipment

The invention provides a ciphertext index information processing method and device and computer equipment, and belongs to the technical field of data retrieval. The method comprises the steps that word segmentation processing is conducted on a to-be-processed text, at least one word segmentation lexical element and attribute information of all the word segmentation lexical elements are obtained, and the attribute information comprises at least one of the following items: the index position and type of all the word segmentation lexical elements; performing encryption processing on each word segmentation lexical element to obtain an encrypted lexical element corresponding to each word segmentation lexical element; encoding each encrypted lexical element and the attribute information to obtain a character long string, and sending the character long string to a data server, the character long string being used for indicating at least one of the following items: the encrypted lexical elements in the to-be-processe