A single-sided metal embossed plate and a baking-painted steel plate and a manufacturing method thereof mainly comprise a steel plate, a galvanized layer, a three-dimensional texture layer and a three-dimensional baking paint layer. The galvanized layer is formed on the steel plate, and then the three-dimensional texture is laminated and printed on the galvanized surface steel plate. Formed. The manufacturing method is as follows: hot dip plating is performed on the surface of a steel plate to form a galvanized layer; embossing is performed on the steel plate to form a three-dimensional texture layer; roller coating is performed on the three-dimensional texture layer to form a three-dimensional baking paint layer. It has the effect of avoiding the use of PVC materials, reducing the cost of primer paint and improving the appearance of products.