Abstract: In this paper, from the current situation of the domestic use of superconducting MRI, on liquid helium supply and demand crisis in the market, according to the production process of the enterprise, taking the medical 1.5 T superconducting magnet as an example, the main design essentials of the helium-free magnet are introduced comprehensively, the feasibility of the helium-free magnet research and development are described, important value orientation for the domestic manufacture and use of superconducting MRI was provided.