An eyeglass-type image display device configured to display an image on a lens surface of eyeglasses, the eyeglass-type image display device comprising: an image light output unit configured to output image light including image information; a first optical member configured to receive the image light output indirectly from the image light output unit through a splitter; and a second optical member configured to receive the image light emitted from the first optical member and project the image light in a direction oblique to the lens surface; wherein an incident plane of the first optical member is arranged to be inclined to the lens surface so as to suppress distortion of an image on the lens surface caused by the image light projected in the direction oblique to the lens surface from the second optical member, characterized in that: the first optical member is a single optical member configured to emit the image light in an inverted trapezoidal shape, wherein the first optical member is arranged such that the incident plane is inclined to the lens surface so that image light having a longer distance from the second optical member to the lens surface has a shorter distance from the image light output unit to the incident plane, wherein the first optical member comprises a reflective screen for reflecting the image light output from the image light output unit toward the splitter, wherein the splitter reflects the image light from the first optical member to a mirror, wherein the second optical member comprises the splitter and the mirror. an image light output unit configured to output image light including image information; a first optical member configured to receive the image light output indirectly from the image light output unit through a splitter; and a second optical member configured to receive the image light emitted from the first optical member and project the image light in a direction oblique to the lens surface; wherein an incident plane of the first optical member is arranged to be inclined to the lens surface so as to suppress distortion of an image on the lens surface caused by the image light projected in the direction oblique to the lens surface from the second optical member, characterized in that: the first optical member is a single optical member configured to emit the image light in an inverted trapezoidal shape, wherein the first optical member is arranged such that the incident plane is inclined to the lens surface so that image light having a longer distance from the second optical member to the lens surface has a shorter distance from the image light output unit to the incident plane, wherein the first optical member comprises a reflective screen for reflecting the image light output from the image light output unit toward the splitter, wherein the splitter reflects the image light from the first optical member to a mirror, wherein the second optical member comprises the splitter and the mirror. the first optical member is a single optical member configured to emit the image light in an inverted trapezoidal shape, wherein the first optical member is arranged such that the incident plane is inclined to the lens surface so that image light having a longer distance from the second optical member to the lens surface has a shorter distance from the image light output unit to the incident plane, wherein the first optical member comprises a reflective screen for reflecting the image light output from the image light output unit toward the splitter, wherein the splitter reflects the image light from the first optical member to a mirror, wherein the second optical member comprises the splitter and the mirror.