The invention relates to a hybrid networking technology-based busway temperature rise online monitoring system. The system is characterized in that the system comprises a monitoring computer, a data acquisition device, a gateway and a temperature measuring terminal; the temperature measuring terminal acquires busway temperature information and environment temperature information, transmits the information to the gateway through a ZigBee network; the gateway transmits the information to the data acquisition device through a radio frequency network; the data acquisition device displays the temperature information in real time, and gives sound-light alarms when the temperature information is abnormal, and transmits data to the monitoring computer through a wired communication mode; and the monitoring computer displays the temperature information in real time, and gives sound-light alarms when the temperature information is abnormal. The system not only has the advantage of flexible networking of a ZigBee network, but also has the advantage of wide-range monitoring of the radio frequency network. With the system adopted, a user can observe the temperature rise condition of monitoring points of a busway in real time on the monitoring computer and the data acquisition device; requirements for long-distance data transmission, flexible layout of busbar temperature rise monitoring points and remote monitoring can be satisfied; and the temperature rise condition of the busway can be monitored in real time. The system has a great market prospect.