The invention provides a method for predicting aging of electric force compounded grease at the electrical contact junction of a converter station. The method comprises the following steps: establishing an electric force compounded grease aging acceleration prediction model; performing a combined factor prediction test of electric force compounded grease aging; performing multivariate regression calculation on the electric force compounded grease aging acceleration prediction model according to a test result to obtain a prediction result of the aging of the electric force compounded grease at the electrical contact junction of the converter station. In the method disclosed by the invention, the three factors of heat, electricity and salt mist are considered to adapt to the actual environmental conditions of the converter station, so that a basis is laid for the prediction of the aging life of the electric force compounded grease under the heat-electricity-salt mist conditions of the converter station, timely replacement of the aged electric force compounded grease at the electrical contact junction of the converter station is ensured, and accidents due to over-high temperature rise are avoided.