The invention discloses a control method for obtaining an internet information propagation index. The method comprises the steps of setting specified internet information needed to be monitored and adata source; regularly capturing issuing information of the specified internet information in the preset data source, and all basic information of reprint information, related comment information andlike information; performing calculation to obtain an issued amount, a reprint quantity, a comment quantity and a like quantity of the internet information in the preset data source; and according tothe obtained issued amount, the reprint quantity, the comment quantity and the like quantity of the internet information, setting weight proportions in different internet information propagation indexes, performing calculation through standard numerical values calculated for the issued amount, the reprint quantity, the comment quantity and the like quantity in a natural logarithm manner accordingto different weight proportions to obtain the internet information propagation indexes corresponding to the internet information, and performing storage. The problem of measurement of propagation andinfluence effects of news in aspects is solved.