The invention discloses a transformer station distribution apparatus maintenance prevention method, which comprises the steps of data gathering , data calculating and calculate optimizing. According to the method, the running states of various distribution apparatuses can be effectively monitored, and traditional experience summary and accurate data calculating are combined, thereby the scientific and accurate performance for distribution apparatus inspection and maintenance determination are greatly raised; the apparatus inspection and maintenance work plan can be made; the maximize requirement of stable apparatus operation is satisfied and the optimized requirement of apparatus inspection and maintenance cost is satisfied. In this way, the operation stability of distribution apparatus is greatly improved, and the apparatus operation and maintenance cost are reduced.