The invention relates to the technical field of oil exploitation downhole operation, in particular to a downhole operation monitoring method and
system, and the method comprises the steps: deploying an
integrated monitoring node network in a downhole target area, and enabling the monitoring node network to comprise a plurality of distributed monitoring nodes; through the distributed monitoring nodes, multiple physical parameters in the underground operation process are synchronously collected, and multi-source heterogeneous
monitoring data are formed; carrying out edge calculation
processing on the multi-source heterogeneous
monitoring data in a well to extract feature information representing an underground working condition state; and adaptively selecting a
data transmission mode based on a preset data priority rule and the
current channel state, and uploading the processed feature information to a monitoring center through a communication network. The method realizes real-time panoramic monitoring of the underground operation state, reduces the
communication bandwidth demand through local
data processing, and improves the communication efficiency. And transmission of key alarm information can still be guaranteed when channel conditions fluctuate.