The purpose of this paper is to report the application of Rogers’ science of unitary human beings theory to exploring the influence of the environment and the nursing process on an adolescent with behavioral disturbance at a children’s mental health outpatient department. Rogers’ theory is that the principles of resonancy, helicy and integrality explain the life process of human beings, and predict the development of the life process. In the paper, these principles were adopted throughout the nursing process to explore their relationship. We found that the nurse made use of varied nursing interventions, and that the interventions were influential in three aspects. In the aspect of integrality they could promote the interaction of client and environment energy field. In the aspect of helicy, they were able to reduce the complexity of the behavioral deviation. In the aspect of resonancy, they were able to slow down the evolution of acceleration of energy field between client and environment.