The method of manufacturing a dialkoxy magnesium, a method of manufacturing dialkoxy magnesium, olefin polymerization solid catalyst component and the olefin polymer

The present invention is a magnesium dialkoxide characterized in that the arithmetic mean roughness (Ra) of the surface of the particles is 0.5 or less, and the maximum height (Rz) of the surface of the particles is 2.0 or less. According to the present invention, it is possible to provide a surface smoothed dialkoxymagnesium.