The article presents the author’s approach to understanding the conceptual model of a person ustoychivost', which is based on such concepts as “stability” and “resistance”. Two hypotheses of the exploring are considered. Hypothesis 1: the conceptual model of human ustoychivost’ is based on the concepts "stability" and "resistance", which define the semantic load of the concept "person ustoychivost'". Hypothesis 2: a conceptual model of human ustoychivost' can be created and described if it is based on the psychophysiological, psychological, and psychosocial levels of the organization of human life. In a psychological sense, the author’s definition of ustoychivost’ is formulated: Person ustoychivost’ is his ability to retain health at the psychophysiological, psychological, and psychosocial levels of life under the influence of destroyers. The article presents the ustoychivost’ scale, which can be used as an express assessment of ustoychivost’. The scale is divided into three zones: middle zone - "stability" zone and two extreme zones - "resistance" zones. Among the results, 14 criteria of ustoychivost’ should be singled out, which were identified by respondents (n = 1200) when evaluating their ustoychivost’. The results of the experiment and explanations for them are also presented. Ustoychivost’ author’s conceptual model is presented in conclusion.