British neo-Marxism is a novel theory that emerged and developed in the UK during the period from 1950s to 1980s. It encompasses issues of history, culture, politics, society, technology, and outer space as it continues to broaden alternate critical research approaches. It carries on the intellectual tradition of British Marxism and is guided by the guiding role of Marx's thought. British neo-Marxism has contributed to the formation of multiple neo-Marxist thinking paradigms with unique British characteristics, and its theatrical implications concern the new historicism focused on cultural criticism, the neo-rationalist thinking of changing social orders, and the neo-humanistic thinking aiming to fulfill the reform of social institutions. Its innovation in the systemization of thinking paradigms is doubtless an effect of the paradigm shift in the way of thinking of humankind to change the social order. Our study of British neo-Marxism is of important theoretical significance and practical value for both the enhancement of research on Marxist philosophy, and the innovation in the Marxist thinking paradigm.