论述了稳态等离子体发动机对于我国空间发展战略的重要意义和作用，指出磁场设计是提高稳态等离子体发动机性能的关键技术之一；分析了稳态等离子体发动机通道内磁场设计的发展过程，在此基础上提出了用于稳态等离子发动机磁场设计的体系化构想，并且指出了其中存在的一些关键问题和拟采取的解决措施以及磁场体系化设计对稳态等离子体发动机带来的预期效益和影响；最后展望了稳态等离子体发动机磁场设计体系的进一步发展和应用。

The Stationary Plasma Thruster (SPT) will play a very important role for China's future space developing plan. And the magnetic field is the key to improve the performance of SPT. The evolvement of the magnetic field character applied to the two generations SPT has been reviewed. Then a set of engineering method used in the magnetic field design for SPT is set up in the paper. Besides, some possible problems existing in the method and the corresponding ways to resolve them are respectively put forward. And the expectant results are also anticipated when the set of method is applied to the magnetic field design for SPT. At last, more advanced development and application of the magnetic field design method is imaged.