Abstract: The TT&C system is an indispensable part of deep space exploration project with its navigation and telecommunication performance being the key factor for mission success and science output. In condition of faraway distance, long delay, feeble signal and easy discontinuity, developing and applying a series of deep space TT&C new technologies, such as antenna array, regenerative pseudo-noise (PN) ranging, connected-element interferometry, phase-referencing interferometry and delay-tolerant network, can provide high precision navigation methods and high rate data transmission capabilities for future deep space exploration missions.