The invention relates to a luminous element and a manufacturing method thereof, in particular to a method for forming a weld pad on the luminous element by using a chemical coating method. The luminous element comprises a base plate and a semiconductor lamination which is positioned on the base plate, wherein the semiconductor lamination comprises a p-type semiconductor layer, an n-type semiconductor layer, a luminous layer positioned between the p-type semiconductor layer and the n-type semiconductor layer, and the weld pad positioned above at least one of the p-type semiconductor layer and the n-type semiconductor layer; the weld pad comprises a crystal seed layer formed by a physical coating method and a chemical coating layer formed by a chemical coating method; and crystalline particles of the crystal seed layer are bigger than crystalline particles of the chemical coating layer.