Introduction. The article presents the axiological aspect of will as a phenomenon of a person's regulation of his behavior and scientific activity, in particular. The study of the mechanisms of volitional decisions in scientific knowledge is necessary, first of all, because the will is responsible for the formation of goals and the implementation of eff orts to realize them. The purpose of philosophical research is to identify the ontological sources of the phenomenon of will and their axiological analysis in scientific activity leading to creative judgments. Theoretical analysis. The axiological approach allows us to explore the possibilities of the mind, as opposed to impulsive desires, in conditions of making volitional decisions both in science and other forms of knowledge. The ontological basis of will is the presence of an obstacle, overcoming which becomes the fulfillment of a goal. In scientific activity, the will prevents the manifestation of emotional excitement, acting as a determinant of scientific research activity. An axiological analysis of will as a value and a source of positive emotions demonstrates the achievement of a goal by satisfying the need to overcome an obstacle that has a correlation with the category of singularity. Conclusion. A value analysis of the phenomenon of will shows the possibilities of human thinking for the most productive scientific activity, expressed in a combination of the optimal level of emotional stress and strong will.