Interior landscape design needs a comprehensive use of a variety of design theories and technical means, so that the aesthetic feeling and connotation of the works can be effectively reflected. However, the existing means and methods of interior landscape design have been difficult to meet the increasingly high expectations and needs of users. The development of virtual reality technology has brought new changes to interior landscape design, which is helpful to give full play to the auxiliary role of design. Based on this, this paper first analyses the application characteristics of virtual reality technology, then studies the application status and problems of virtual reality technology in interior design, and finally gives the modeling method of virtual reality technology in interior design.