Junk short message intercepting method and device

The invention discloses a junk short message intercepting method and device. The method comprises the steps that short message service data of a target calling number in a preset period are acquired, and the short message service data at least comprise first data of a first short message sent by the target calling number and second data of a first called number receiving the first short message; determining the dispersion between the first called numbers, the association degree between the target calling number and the first called numbers and the similarity between the first short messages based on the short message service data; when the dispersion, the correlation degree and the similarity all meet preset conditions, marking the target calling number as a suspected junk number, and sending a to-be-sent second short message of the target calling number to a manual auditing module for auditing to obtain an auditing result; and intercepting or releasing the second short message based on the audit result. Acco