The utility model provides an electric power TD -LTE multi -service system of bearing that physics is kept apart, including clock source, LTE basic station, LTE core net A, LTE core net B, LTE core router A, LTE core router B, electric power SDH passback net, at least one terminal equipment UE_A and at least one terminal equipment UE_B, the clock source is LTE core router A respectively and LTE core router B provides synchronized clock the signal, electric power SDH passback net is equipped with mutually independent passback passageway A and passback passageway B. The utility model discloses an electric power TD -LTE multi -service system of bearing that physics is kept apart keeps the independence of original network and furthest to utilize limited frequency resource in can applying to the mutually independent electric power information network twine, solves the isolation problem of bearing through the professional synthesis of TD -LTE technology electric power system, has better application prospect.