A method for forming a metal mesh pattern is provided. The method includes the operations below. First, at least one pitch of each of mesh base units of a mesh base is determined, and thereby the mesh base is formed. Then, a seed region is set in each of the mesh base units of the mesh base, in which a ratio of an area of each of the seed regions to an area of each of the mesh base units is a constant. Then, a plurality of seeds are generated by randomly selecting a point in each of the seed regions. Finally, the metal mesh pattern is formed, in which the metal mesh pattern is a set of perpendicular bisectors of lines connecting the seeds and their adjacent neighboring seeds.