Investigations of atomic and electronic structures in amorphous solid and liquid states of metallic glasses are important to understand the reason for the stability of metallic glasses. For this purpose, a research division A02 was organized in the program of Grant-in-Aid for Scientific Research on Priority Areas "Materials Science of Bulk Metallic Glasses". This research division consists of four sub-groups to investigate (1) as-formed and annealed structures, (2) liquid and super-cooled liquid atomic structures, (3) liquid-solid phase transformation and (4) electronic structures and physical properties of metallic glasses. Researches of our division achieved in these three years are summarized in the following.