The Study investigated economic effects and the conditions in the public Shipping e-marketplace. For efficient operation of the public Shipping e-marketplace, this study analyzed how do the participation and community actualize in the public Shipping e-marketplace actualize. According to the research results of the Shipping Cooperations, For Promoting participation in the public Shipping e-marketplace, the Cyber-intermediary operating public Shipping e-marketplace provides timely shipping information, needs publicity strategy generating more benefits than offline transaction, and gives a conviction of the searching costs and transaction costs decrease. Second For promoting community, the Cyber-intermediary must playa major role in electronic community and drive forward continuous publicity strategy in the public Shipping e-marketplace.