The invention relates to a LoRa communication network control method oriented to ecological monitoring, and belongs to the technical field of sensor networks. The method comprises the following steps:acquiring position information of all nodes specific to an ecological monitoring network built by a LoRa communication technology, and dividing a monitoring area into s subareas which are the same inangle amplitudes; S2, selecting a representative in each subarea for uploading monitoring data once at a period T, and estimating monitored values of other nodes by using time-space relevance of ecological parameters; and S3, dynamically controlling areas, rotating each subarea by delta alpha at the current position after representative node uploads the data for r times to form novel divided areaand reimplementing the step S2. Through adoption of the method, the representative node is selected for uploading data dynamically according to a dynamic dividing area control mechanism in order to balance node energy consumption between subareas, and lower node data transmission traffic, so that the working time of the ecological monitoring network is prolonged.