A virtual image display device for presenting a virtual image to a user (E) via a virtual image presentation plate having a uniform thickness (t), comprising: a display unit that generates an image display light (L); and a projection optical system that projects the image display light toward the virtual image presentation plate, wherein the projection optical system includes a projection mirror that projects the image display light toward the virtual image presentation plate and an optical device of transmission type provided such that a light axis of the optical device intersects at an angle (φ c ) to a light path of the projection optical system, the display unit is provided at a focal point of a composite optical system within a meridional plane, the composite optical system being formed by the virtual image presentation plate and the projection optical system, the projection optical system is configured to have astigmatism due to a difference between the focal point of the composite optical system within the meridional plane and a focal point of the composite optical system within the sagittal plane, the focal point of the composite optical system within the meridional plane is a position of convergence of parallel beams assumed to be incident from the user toward the virtual image presentation plate along the meridional plane of the virtual image presentation plate, and the focal point of the composite optical system within the sagittal plane is a position of convergence of parallel beams assumed to be incident from the user toward the virtual image presentation plate along the sagittal plane of the virtual image presentation plate, wherein the optical device of transmission type is a plane parallel plate, the optical device of transmission type includes a rotational axis, and a direction of the rotational axis of the plane parallel plate is configured to be orthogonal to the meridional plane of the projection optical system. a display unit that generates an image display light (L); and a projection optical system that projects the image display light toward the virtual image presentation plate, wherein the projection optical system includes a projection mirror that projects the image display light toward the virtual image presentation plate and an optical device of transmission type provided such that a light axis of the optical device intersects at an angle (φ c ) to a light path of the projection optical system, the display unit is provided at a focal point of a composite optical system within a meridional plane, the composite optical system being formed by the virtual image presentation plate and the projection optical system, the projection optical system is configured to have astigmatism due to a difference between the focal point of the composite optical system within the meridional plane and a focal point of the composite optical system within the sagittal plane, the focal point of the composite optical system within the meridional plane is a position of convergence of parallel beams assumed to be incident from the user toward the virtual image presentation plate along the meridional plane of the virtual image presentation plate, and the focal point of the composite optical system within the sagittal plane is a position of convergence of parallel beams assumed to be incident from the user toward the virtual image presentation plate along the sagittal plane of the virtual image presentation plate, wherein the optical device of transmission type is a plane parallel plate, the optical device of transmission type includes a rotational axis, and a direction of the rotational axis of the plane parallel plate is configured to be orthogonal to the meridional plane of the projection optical system. <EOS>