In his scientific career of over half a century，Niels Bohr showed his strong creativeness and outstanding ability of creative thinking in the founding of the theory of atomic structure and the positivism of quantum mechanics as well as in the scientific philosophical thinking about the correspondence principle and the complementary principle. Just like the great achievements in the physics founded by him，the characteristics of Bohr's creative thinking will have tremendous in f1uence and eternal enlightenment in the human history of science. The four most remarkable characteristics of Bohr's creative thinking are，.synthesizing and bringing forth new ideas，being bold and quick-witted， philosophical thinking and group consciousness.