Webpage tampering detection method and device

The invention discloses a webpage tampering detection method and device to solve the problems of large calculation amount and low detection efficiency in the prior art. The method comprises the following steps: when a preset detection period is due, segmenting a to-be-detected webpage to obtain a characteristic word set corresponding to the to-be-detected webpage; based on the characteristic word set, obtaining a characteristic vector corresponding to the to-be-detected webpage; inputting the characteristic vector into a pre-established webpage characteristic prediction model, and obtaining a membership degree set corresponding to the to-be-detected webpage; calculating the characteristic word similarity and membership degree set; and based on the characteristic word similarity and membership degree set, judging whether the to-be-detected webpage is tampered. Through the way, without comparative analysis of the whole to-be-detected webpage and a reference webpage, the webpage tampering detection can be realiz