The utility model relates to a multi-node network type water level measuring device which comprises at least one water level measuring node group and one host personal computer (PC), each water level measuring node group comprises a plurality of water level measuring nodes, each water level measuring node is connected with a chip which is connected with the host PC in a bus-type topological structure, and the host PC realizes data sharing through the computer network; each water level measuring node comprises a probe type water level sensor, a signal modulate circuit, a singlechip and a power supply, wherein the singlechip is internally previously provided with a programme to control the probe movement of the probe type water lever sensor and obtain measurement data, and the obtained data is processed after being uploaded to the host PC. The utility model overcomes the influences such as the temperature of a water body, the surface tension, and the like, thereby enhancing the measurement precision. In addition, each host PC is downwards connected with a plurality of singlechip systems so as to be convenient for short distance multi-metering, and each host PC is built as a measurement system based on an Ethernet network so as to be convenient for long-distance data sharing and long-distance multi-metering.