An illuminating fish-attracting device, comprising a fixing support, a solar panel, a storage battery, a lamp and at least one floating member configured to float on a water surface when in use. The fixing support and the storage battery are installed on the at least one floating member. The solar panel and the lamp are installed on the fixing support. The storage battery is connected to the lamp and the solar panel respectively. The lamp is positioned on a backlight surface of the solar panel. The backlight surface is configured to face the water surface when in use.
