The invention discloses a cheating user community marking method. The method comprises the steps of performing heterogeneous network construction processing on associated information data among multiple users to obtain a heterogeneous network; performing community discovery processing on the heterogeneous network according to a community discovery algorithm to obtain multiple user communities; performing calculation processing on each user community according to an association degree coefficient among the users in the corresponding user community and risk coefficients of all the users to obtain corresponding community risk values; and marking the user community with the highest risk level as a cheating user community. Through the heterogeneous network, quantitative processing of communityrisks is realized and the accuracy of marking the cheating user community is improved, so that the risk control can be effectively performed and the harm of the organized cheating user community on afinancial company is avoided. The invention furthermore discloses a cheating user community marking apparatus, a server and a computer readable storage medium, which have the abovementioned beneficialeffects.