Studies of high‐spin states by using stable and unstable nuclear beams are presented. High‐spin states of neutron‐rich nuclei near 48Ca region were investigated by using a fusion‐evaporation reaction of RI‐beam, 46Ar with 9Be target. Excitation function measurement and γ‐γ coincidence analysis were performed. By using stable‐isotope beam, study of high‐spin states in A∼100 region was performed. Based on the γ‐γ coincidence analysis, a rotational band was found in 107In. Properties of the band was compared with total Routhean surface calculations.