It is the largest source of foreign investment in Jiangsu，whichfrom Hong Kong and Macao，accounting for over 60% of the total in recent years.That is an organic component of Jiangsu's high quality development，the high quality development of Hong Kong and Macao investment in Jiangsu.In the new century，some of the investment of Hong Kong and Macao is not enough to absorb the cost of production and operation，innovation awareness is not strong，research and development capability is weak，and in some areas where Hong Kong and Macao investment have competitiveness，but market access are still a problems.In order to promote the high-quality development of Hong Kong and Macao investment in Jiangsu province，our province should expand the market opening of modern service industry and implement CEPA，actively guide to invest more in strategic emerging industries and high-end manufacturing industries，highlight the combination of the investment introduction and the intelligenceintroduction，and encourage investment from Hong Kong and Macao to participate in the domestic enterprises optimizing and restructuring，deepen the national treatment，further modify the regulations，to provide more perfect legal system，improve the government service system，building a good business environment.