The invention discloses a joint debugging processing system and method. The joint debugging processing system comprises a lower monitoring module, a lower maintenance module, an upper monitoring module and a total maintenance module, wherein the lower monitoring module and the lower maintenance module are used in cooperation with each other to accomplish monitoring on a lower monitoring object, and carry out the corresponding maintenance operation process when a maintenance requirement is monitored in real time, and correspondingly, the upper monitoring module and an upper maintenance module are used in cooperation with each other to achieve real-time monitoring and maintenance on an upper monitoring object. The upper monitoring module and the lower monitoring module carry out real-time communication, joint debugging of the upper monitoring object and the lower monitoring object is achieved through real-time communication between the upper monitoring module and the lower monitoring module, cooperation between the upper monitoring module and the upper maintenance module and cooperation between the lower monitoring module and the lower maintenance module, and the problem that in the prior art, joint debugging cannot be timely processed is solved. Therefore, the joint debugging processing system and method have the advantages that power grid operation monitoring personnel can conveniently carry out monitoring and maintenance on a power grid, and the guarantee is provided for high-efficiency operation of the power grid.