Method of calibration, system and the device of distributed caching content

The present invention proposes a kind of method of calibration, system and the device of distributed caching content.Method comprises the following steps：Multiple cache nodes receive user and ask and obtain corresponding response contents from source station；The multiple cache node generates corresponding response check value according to the response contents, and the user is asked and corresponding response check value is sent to contrast machine；The contrast machine asks to obtain contrast content from the source station according to the user, and according to the corresponding first contrast check value of the contrast content generation；And the contrast machine response check value sent according to the multiple cache node and the first contrast check value generated are verified.According to the method for calibration of the present invention, verified by increasing contrast machine from source station acquisition contrast content with generating check value, considerably improve verification speed, the cache contents situation different from source station content can be found in time, it is ensured that good Consumer's Experience.