Diatom mud water-based interior wall paint has strong physical adsorption performance and ion exchange performance. With its simplicity, original marine flavor and natural color, diatom mud creatively shows the finishing effect different from traditional wall materials. It not only has soft texture, but also emits a kind of rock like massiness, which can effectively decompose free formaldehyde, benzene Xylene, ammonia and various harmful substances with pungent smell.