The invention discloses a network connection method and a network connection system. The network connection system is characterized in that after detecting that a wireless terminal launches network connection to a computer system, a terminal monitoring module obtains terminal features of the wireless terminal; whether a networking strategy corresponding to the wireless terminal exists or not is inquired in a terminal equipment feature storage module according to the obtained terminal features, and if yes, a terminal management module is started; the terminal management module obtains and provides the networking strategy corresponding to the wireless terminal to a user; after receiving a networking operation instruction transmitted by the user according to the networking strategy, the terminal management module controls the wireless terminal according to the networking operation instruction to realize network connection, i.e. the proper networking strategy is adaptively selected for the wireless terminal for current networking operation according to the terminal features; and different terminal management systems are not required to be used for networking, so that the development difficulty of systems is reduced, the reliability of the systems is improved, more convenience is brought for a user to use, and the satisfaction of user experience is improved.