A light irradiation hair removal device comprising: a light source configured to intermittently emit light including a first irradiation light and a second irradiation light, the second irradiation light being emitted for a longer time than the first irradiation light and before the first irradiation light, the first irradiation light and the second irradiation light each having a wavelength from 400 nm to 1200 nm inclusive; a skin cooling unit that faces the light source and is configured to transmit light emitted from the light source, and to cool a skin in a case where it comes into contact with the skin; and a push switch that includes a pressing unit surrounding a periphery of the light source and the skin cooling unit; wherein when the pressing unit is not being pressed, the pressing unit protrudes toward a direction opposite to the light source against the skin cooling unit from a surface of the skin cooling unit, the surface that is to be brought into contact with the skin, when the pressing unit is pressed by the skin, a surface of which pressed by the skin moves toward a direction of the light source against the skin cooling unit, and the push switch is configured to switch between emission and non-emission of light from the light source such that light is emitted from the light source during at least a part of time while the pressing unit is pressed, and light is not emitted from the light source while the pressing unit is not pressed, wherein the first irradiation light has a maximum irradiance that is a largest irradiance of the light emitted by the light source in an intermittent manner, and the second irradiation light has an irradiance smaller than the maximum irradiance. a light source configured to intermittently emit light including a first irradiation light and a second irradiation light, the second irradiation light being emitted for a longer time than the first irradiation light and before the first irradiation light, the first irradiation light and the second irradiation light each having a wavelength from 400 nm to 1200 nm inclusive; a skin cooling unit that faces the light source and is configured to transmit light emitted from the light source, and to cool a skin in a case where it comes into contact with the skin; and a push switch that includes a pressing unit surrounding a periphery of the light source and the skin cooling unit; wherein when the pressing unit is not being pressed, the pressing unit protrudes toward a direction opposite to the light source against the skin cooling unit from a surface of the skin cooling unit, the surface that is to be brought into contact with the skin, when the pressing unit is pressed by the skin, a surface of which pressed by the skin moves toward a direction of the light source against the skin cooling unit, and the push switch is configured to switch between emission and non-emission of light from the light source such that light is emitted from the light source during at least a part of time while the pressing unit is pressed, and light is not emitted from the light source while the pressing unit is not pressed, wherein when the pressing unit is not being pressed, the pressing unit protrudes toward a direction opposite to the light source against the skin cooling unit from a surface of the skin cooling unit, the surface that is to be brought into contact with the skin, when the pressing unit is pressed by the skin, a surface of which pressed by the skin moves toward a direction of the light source against the skin cooling unit, and the push switch is configured to switch between emission and non-emission of light from the light source such that light is emitted from the light source during at least a part of time while the pressing unit is pressed, and light is not emitted from the light source while the pressing unit is not pressed, the first irradiation light has a maximum irradiance that is a largest irradiance of the light emitted by the light source in an intermittent manner, and the second irradiation light has an irradiance smaller than the maximum irradiance.