The invention discloses a mobile phone mode control method, a mobile phone mode control device and a terminal. The method comprises the following steps: storing different hierarchical modes obtained through hierarchical setting of the mode of a mobile phone, wherein the different hierarchical modes include at least two layers selected from different user hierarchical modes, different use environment hierarchical modes and different use demand hierarchical modes; and controlling the different hierarchical modes according to a preset layer-by-layer matching relationship between different layers of the different hierarchical modes. Through the technical scheme, the defects such as fewer functions, small scope of application and inconvenient use in the prior art are overcome, and the beneficial effects of multiple functions, large scope of application and convenient use are achieved.