The invention discloses an immersive virtual reality screen projection system, which includes a projection screen and projection equipment. The projection screen includes a top screen, a vertical screen and a ground screen sequentially connected from top to bottom, and the top screen, vertical screen and ground screen are jointly formed. A three-dimensional viewing space, the projection equipment includes a first projection group, a second projection group and a third projection group, the first projection group includes the first projector projected on the floor screen, and the second projection group includes the first Two projectors, the third projection group includes a third projector projecting on the ceiling. In the present invention, the top screen, the vertical screen and the ground screen are connected as an integrated screen, and the screen is bent or bent as a whole to form a three-dimensional and grand viewing space, and each area on the projection screen is correspondingly equipped with a corresponding The projection group is used to form a balanced and complete projection picture. When the audience walks or stands on the ground, they are surrounded by images, so that the audience has a strong sense of presence and immersion, effectively improving the audience's viewing experience.