That quantum phase transition (QPT) that occurs at the same nucleus causing the change of the basic state by rotation can be understood as an evolution from a higher-ordered and high-excitation model to another lower-ordered and high-excitation one, which implies a nucleus populated at high-momentum state decoupling firstly to the yrast-band with some E2-trasitions mode, then to the coexist region (or critical point), wherein the structure-energy is released. The change of the nucleon coupling intensity is caused, finally the basic state of the lower-ordered excitation model is reconstructed, the evolution of basic states structure is accomplished. This description of nuclear QPTs has endowed them with some similar to Landau’s classical quantum thermal phase transition in terminology and physical significance. This standpoint is generalized into the phase transitions that occur at the same nucleus one after an other. As an example, for the 182Os nucleus, the problem is discussed carefully, and the enhanced sensitivity of nuclear binging energy to collective structure is demonstrated.