After the oil crisis,the upgrading of Japan's industrial structure has experienced a transmutation from the capital-intensive to the knowledge-intensive.This paper first analyzes the characteristics and manifestation of the upgrading of Japan's industrial structure based on technical innovation.The paper then points out that technology innovation played a leading role in the upgrading of Japan's industrial structure, by means of the transformation of traditional industries,draws out the rise of new industry and the cultivation of leading industry group.Finally,it draw three points of enlightenment from Japan's experience and lessons,in combination with the deficiency in the independent innovation ability that is restrict the upgrading of China's industrial structure. <<