In the IMGSL, electronic states of matter are investigated using pulsed magnets. Many kinds of materials, such as semiconductors, magnetic materials, metals, and insulators are studied. Non-destructive magnets can generate approximately 80 T and are used for high precision experiments including electrical resistivity, optical property, and magnetization measurements. Combination of high pressures and low temperatures with the high magnetic field is also available. These experimental techniques are open for domestic as well as international researchers. The magnet technologies are intensively devoted to developments for the quasi-steady long pulse magnet (an order of 1-10 sec) energized by the world largest DC generator (210 MJ), and also to a 100 Tesla class nondestructive magnet. On the other hand, the single-turn coil and electromagnetic flux compression techniques have been utilized for ultrahigh magnetic field generation exceeding 100 T in destructive manner. Researches with the multi-megagauss fields of around 100 to 1000 T have been conducted aiming to a discovery of novel phenomena. Also, we plan to the use multi-megagauss fields for interdisciplinary researches with chemistry, bioscience, and space physics.