The present invention relates to a transmitting method for narrow band access in cable television network, which belongs to the frequency division multiplexing system technology field. . A tuning unit and a microprocessor combined with the tuning unit are installed in the HUB at the joint of the route network and home network, to process the remote control information uploaded from users and the authorization message downloaded from the network manager. The frequency outputted by the tuning unit can be an intermediate frequency or can be a fixed radio frequency. The present invention makes the cable TV access network became simply and easy to transmit, and easy to manage for operators; which has advantages of low investment, high security, flexible operation and is favorable for the transition of the digital television. The present invention also provides a novel chance to realize ''three networks in one'' according to real fee method and audience rating survey.