According to the explorative case study with grounded theory based on interview and secondary data from two business groups, the non-archetypical patterns are extensive in practices. They are constructed and selected through the extent of centralization/decentralization by evaluating corporate value, synergy effect and control fitting of each subsidiary, which make centralization/decentralization as mediator in this mechanism. Besides, there are two new archetypes that emerge from case data including core-resources control and investment control, which are complementary to the "Trichotomy". Then a theoretical model of continuum of control patterns is constructed, which improves the construction and selection mechanisms of non-archetypical patterns.