In the digital age, the need to reinterpret real space by researching space expressed as an illusion in virtual reality content is being emphasized. Comparing the relationship between illusion and visual thinking in relation to content in virtual reality design, it can be seen that most virtual reality content has a fundamental property. In addition, users experience visual illusion according to the characteristics of virtual reality content and become an important design component for users to experience visual perception. The purpose of this study is to analyze the conditions of visual welcome of virtual reality content and study the reproducible welcome expression applied to virtual reality content based on this. Therefore, this study begins with examining the concept and classification of virtual reality and establishing the conditions of visual illusion. In addition, based on previous studies and existing literature, the conditions of visual illusion suitable for virtual reality were classified. The conditions of visual illusion were classified into three conditions: visual illusion conditions, spatial illusion conditions, and reproducible illusion conditions, and are classified into 10 detailed visual illusion forms in the past art history. Based on this, media art, art games, and virtual reality games, which are virtual reality contents, were selected to analyze content cases and calculate results.