In a touch control electrochromic device such as a resistive or capacitive touch panel, the electrochromic device combined with a resistive touch panel includes a resistive touch panel unit having a first transparent conductive substrate and a second conductive substrate; an electrochromic material, which is a pure liquid filled into the resistive touch panel unit; an insulator installed at internal peripheries of the first transparent conductive substrate and the second conductive substrate; and a controller electrically coupled to the resistive touch panel unit for turning on/off an external power source of the electrochromic material by an external touch control signal. The resistive touch panel unit directly drives the coloration/decoloration of the electrochromic material to achieve the effect of a power saving window or smart glass.