Color-viewing function measuring device that is configured to measure color vision and/or a color-viewing field that are collectively referred to as the color-viewing function of an examinee by testing whether the examinee can perceive a plurality of presented targets (A 11,...), - wherein the targets (A 11,...) are colored in chromatic color and presented on a background, - the color-viewing function measuring device comprising: - a display that is comprised of at least one of a liquid crystal display, a plasma display, an organic EL display and a CRT, - a background indicator configured to present the background on the display, - a target indicator configured to present the targets (A 11,...) having a predetermined brightness, a predetermined color and a predetermined size on the display, said target indicator configured to present the targets (A 11,...) at various positions on the display in case when the color-viewing field is to be measured, - a perception detector configured to output a signal indicating that the examinee perceived the presented target (A 11,...) characterized in that it additionally comprises: - a perception time measurer configured to measure the time from the presentation of the target (A 11,...) to the perception by the examinee based upon the signal from the perception detector, and - a color-viewing function judger configured to judge the color vision and/or the color-viewing field of the examinee based upon the predetermined size or the position of the presented target (A 11,...) and the time that was measured through the perception time measurer, - all of the plurality of the targets (A 11,...) or at least a predetermined number of the plurality of targets (A 11,...) presented by the target indicator being colored in the same chromatic one color and the background presented by the background indicator being colored in an achromatic color, wherein the brightness of the targets (A 11,...) and the brightness of the background are almost the same, and if the brightness of the target (A 11,...) is α [cd/m 2] and the brightness of the background is β [cd/m 2], the following formula holds: − 10 ≦ α − β ≦ + 10 whereby the color-viewing function measuring device is configured to measure color vision and/or a color-viewing field regarding the chromatic color of the presented target (A 11,...). - wherein the targets (A 11,...) are colored in chromatic color and presented on a background, - the color-viewing function measuring device comprising: - a display that is comprised of at least one of a liquid crystal display, a plasma display, an organic EL display and a CRT, - a background indicator configured to present the background on the display, - a target indicator configured to present the targets (A 11,...) having a predetermined brightness, a predetermined color and a predetermined size on the display, said target indicator configured to present the targets (A 11,...) at various positions on the display in case when the color-viewing field is to be measured, - a perception detector configured to output a signal indicating that the examinee perceived the presented target (A 11,...) - a perception time measurer configured to measure the time from the presentation of the target (A 11,...) to the perception by the examinee based upon the signal from the perception detector, and - a color-viewing function judger configured to judge the color vision and/or the color-viewing field of the examinee based upon the predetermined size or the position of the presented target (A 11,...) and the time that was measured through the perception time measurer, - all of the plurality of the targets (A 11,...) or at least a predetermined number of the plurality of targets (A 11,...) presented by the target indicator being colored in the same chromatic one color and the background presented by the background indicator being colored in an achromatic color,