A panoramic presentation method, comprising the following steps: step S1, building a projection structure; the projection structure comprises a projector and a spherical screen, the projector is equipped with a fisheye lens, the projector is disposed on the spherical screen, and the fisheye lens is tangent to the spherical screen and faces a spherical center of the spherical screen; computer implemented step S2, according to a projection formula of the fisheye lens used, performing a projection transformation, including bringing all objects of a 3D virtual space into a virtual camera's field of view, wherein the virtual camera represents an eye of a viewer located at the spherical center of the spherical screen, so as to generate a 720° panorama, the 720° panorama being a 2D panorama with 360° horizontal field view and 360° vertical field view; wherein the projection transformation comprises adjusting scene coordinates and adjusting a projection matrix; wherein the adjusting scene coordinates is performed according to the following formulas: x 1 = x 0 * θ * secθ; y 1 = y 0 * θ * secθ; z 1 = √ x 0 ∧ 2 + y 0 ∧ 2 + z 0 ∧ 2; wherein θ is an object vector angle, that is, an angle between the z-axis and a line connecting an object and the virtual camera, and the z-axis represents the orientation direction of the virtual camera, wherein the projection matrix is adjusted to: 1 / π * A, 0, 0, 0, 0, 1 / π, 0, 0, 0, 0, − f + n / f − n, − 2 * n * f / f − n 0, 0, − 1, 0 wherein A is an image aspect ratio of the projector, n is the closest distance among distances between visible objects and the virtual camera, and f is the farthest distance among distances between visible objects and the virtual camera; wherein step S2 further comprises: adjusting frustum culling and changing shadow transformation, wherein the adjusting frustum culling comprises the following steps: moving the scene object toward the front of the virtual camera by a distance f for frustum culling; moving the scene object subjected to the frustum culling by the distance f in a direction towards the virtual camera; and f is the farthest distance among the distances between visible objects and the virtual camera; and step S3, projecting the 2D panorama through the fisheye lens to the spherical screen, wherein the viewer is located at the spherical center of the spherical screen, and the 2D panorama builds a stereoscopic space on the spherical screen. step S1, building a projection structure; the projection structure comprises a projector and a spherical screen, the projector is equipped with a fisheye lens, the projector is disposed on the spherical screen, and the fisheye lens is tangent to the spherical screen and faces a spherical center of the spherical screen; computer implemented step S2, according to a projection formula of the fisheye lens used, performing a projection transformation, including bringing all objects of a 3D virtual space into a virtual camera's field of view, wherein the virtual camera represents an eye of a viewer located at the spherical center of the spherical screen, so as to generate a 720° panorama, the 720° panorama being a 2D panorama with 360° horizontal field view and 360° vertical field view; wherein the projection transformation comprises adjusting scene coordinates and adjusting a projection matrix; wherein the adjusting scene coordinates is performed according to the following formulas: x 1 = x 0 * θ * secθ; y 1 = y 0 * θ * secθ; z 1 = √ x 0 ∧ 2 + y 0 ∧ 2 + z 0 ∧ 2; wherein θ is an object vector angle, that is, an angle between the z-axis and a line connecting an object and the virtual camera, and the z-axis represents the orientation direction of the virtual camera, wherein the projection matrix is adjusted to: 1 / π * A, 0, 0, 0, 0, 1 / π, 0, 0, 0, 0, − f + n / f − n, − 2 * n * f / f − n 0, 0, − 1, 0 wherein A is an image aspect ratio of the projector, n is the closest distance among distances between visible objects and the virtual camera, and f is the farthest distance among distances between visible objects and the virtual camera; wherein step S2 further comprises: adjusting frustum culling and changing shadow transformation, wherein the adjusting frustum culling comprises the following steps: moving the scene object toward the front of the virtual camera by a distance f for frustum culling; moving the scene object subjected to the frustum culling by the distance f in a direction towards the virtual camera; and f is the farthest distance among the distances between visible objects and the virtual camera; and moving the scene object toward the front of the virtual camera by a distance f for frustum culling; moving the scene object subjected to the frustum culling by the distance f in a direction towards the virtual camera; and f is the farthest distance among the distances between visible objects and the virtual camera; and step S3, projecting the 2D panorama through the fisheye lens to the spherical screen, wherein the viewer is located at the spherical center of the spherical screen, and the 2D panorama builds a stereoscopic space on the spherical screen.