Progress of studies on nuclei far from stability line

Recently the predicted new decay models, for instance two-proton decay and β- delayed fission have been observed in the investigations of the nuclei far from stability line. The existence of the nuclei located beyond the drip-line has already been studied experimentally and theoretically. It has been started to search for the neutron cluster in experiment by using neutron-rich nuclei. The researches of the spectroscopy and decay properties of the nuclei far from stability line are more and deeper, and found that in the region some old magic numbers are vanishing and some new magic numbers are appearing by comparing the energies of the first excited state, Qβ values and the separation energies of the last one or two neutrons and protons. The reasons for these are introduced briefly. (authors)