This paper deals with the e-Commerce Cooperation between South and North Korea for Promotion of GaeSung Industrial Complex that has been evaluated as the most successful project for inviting the foreign investment of South Korea because many small and medium enterprises are rushing to invest to that Complex. The e-Commerce cooperation between South and North Korea in GaeSung Industrial Complex are playing a role for North Korea survives in the global digital world in that the cooperation is shifted to IT and e-commerce as well as. North Korea has the policy to increase national wealth to uphold the IT industry. The e-Commerce Cooperation between South and North Korea in GaeSung Industrial Complex will develop the e-commerce in North Korea and increase the e-Commerce between South and North Korea in the future.