The embodiment of the invention provides a method and equipment for transmitting pipeline node information, and a method and equipment for determining an incidence relation of pipeline nodes. The method for transmitting the pipeline node information comprises the following steps of: determining a scanning sequence of all the pipeline nodes according to the incidence relation of pipeline nodes to be scanned; sequentially identifying label information on all the pipeline nodes according to the determined scanning sequence in a radio frequency mode; reporting the acquired label information according to the scanning sequence of labels to quickly and accurately acquire the pipeline node information so as to ensure that a sequence relation and an inclusion relation among the pipeline nodes can be established by using the sequentially-identified label information and a preset pipeline node level; and acquiring the incidence relation among all the pipeline nodes on the basis of acquiring the node information.