The authority of domestic construction industry, the construction and planning agency, is in view of the behind degree than other industry in the wave of electronic business. The government especially has budgeted to subsidize and encourage the construction industries to combine the upper and lower supplier to cooperate and share the information with each other through the electronic business and then promote the competition. The research mainly takes technology acceptance model for basis to discuss the acceptance degree of the lower supplier and the utilization in ¡§electronic business information system construction industries¡¨. It is useful to understand and mobilize the success factors and the influential degree for ¡§the electronic business of construction industries¡¨. The conclusion of this thesis shows that the critical success factors of the electronic business of the construction industries are orderly external computer support and training, internal computer support and training, user experience, website quality, technology and task-technology fit theory. When the construction industries are implementing the relative information systems, the above influential factors could be used as the strategy reference of adjustment.