In this paper, high-voltage electricity stealing users are divided into continuous and intermittent types. Firstly, the fluctuation characteristics between electricity stealing users and line loss electricity are studied. Using the Pearson correlation coefficient calculation method, the intelligent identification model of electricity stealing based on the correlation of line loss electricity is constructed. Based on the detailed calculation in actual cases, it shows that the method is effective for the identification of electricity stealing with concealed and professional methods. So, the problem that how to identify the users with no obvious abnormal voltage and current can be solved by this method.