The invention relates to an artemia cysts unshelling and cleaning dechlorination device which comprises an unshelling system, a cleaning system and a connecting system. The artemia cysts unshelling and cleaning dechlorination device is characterized in that the unshelling system comprises a cylindrical barrel with the bottom having a gradient, an automatic stirrer is positioned in the cylindrical barrel, a sodium hypochlorite water inlet pipe and a cold water inlet pipe are arranged at the upper end of the cylindrical barrel, and a probe and a display are arranged on the cylindrical barrel. In the connecting system, the cylindrical barrel and a screen cloth are connected through a connecting pipe, a drain hole of the connecting pipe is formed at the bottom of one side of the cylindrical barrel with a low slope, and the drain hole is provided with a movable cylindrical pipe plug. The other end of the connecting pipe is connected with the screen cloth, the screen cloth is arranged on a vibrating screen, and spray heads are evenly distributed above the screen cloth and provided by the water inlet pipe, a water inlet valve, a water pump and a water outlet valve which are sequentially connected with the cleaning system. The artemia cysts unshelling process and the cleaning dechlorination process are integrated and semi-automated, and the artemia cysts unshelling and cleaning dechlorination device is simpler, more convenient and more efficient and saves labor.