摘要: Topics on the test of fundamental symmetries are shown. Comparison gravitational interactions between particle and anti-particle is one most important experiments for CPT-theorem. The measurement KL0→π0e+- being carried out in order to find direct CP-violating amplitude. Several search T-violation out. muon polarization K+→π0μ+υdecay electron β-decay polarized8Li very interesting from viewpoint T-violation. Recent progress electric dipole moments atoms neutron mentioned. Studies parity-violating processes nucleon-nucleon scattering nucleon-nucleus reactions discussed. results encourage us measure using polarized neutrons a nuclear target.