Stimulated by ion cyclotron resonance frequency (ICRF) heating and neutral beam injection (NBI) heating which can generate anisotropy in temperature and temperature gradient of ions in tokamak experiments, Migliuolo first investigated effects of ion temperature anisotropy on ion temperature gradient (ITG) driven Stimulated by ion cyclotron resonance frequency (ICRF) heating and neutral beam injection (NBI) heating which can generate anisotropy in temperature and temperature gradient of ions in tokamak experiments, Migliuolo first investigated effects of ion temperature anisotropy on ion temperature gradient (ITG) driven