In his works, Miró used his own inner truth and expression in addition to a meaningful look with the effect of visual perception. In his works where the spiritual and psychological structure of Miró finds expression in art, the artist has cast aside aesthetic anxiety and reflected his own spiritual interpretation, internality, and childish enthusiasm into her art. Miró's works have been affected by the magical influence of his past life. Miró seems to have made his works as if he made them with the urge to melt and uncertain in a mystery. Joan Miró took the forms he used in his works within the framework he saw or brought a psychological perspective to the forms. In Miró's works, we can see the effect of surrealism on the effects of the artist's own subconscious. He wanted to reflect a subconscious world that he wanted to reflect, and his own logical inconsistency removed the reality of external perception. The purpose of the research is to uncover how Joan Miró reflects his inner-spiritual structure in his works. Research is important in terms of seeing how the spiritual structure of Miró creates different styles technically and expressively in his works. In order to reach the data made with the qualitative research method, books, internet, articles, and theses were examined. The descriptive analysis method was used to analyze the pictures within the scope of the research. The method of descriptive analysis was used to analyze the pictures within the scope of the research. As a result of the research, it is seen that the artist has tried to obtain and satisfy the childlike expressions in his works in which he has not become insatiable from a psychological point of view and has studied elements such as color and form freely and from a spiritual point of view beyond its true meaning.