Water quality monitoring device

The utility model discloses a water quality monitoring device, relates to farmland irrigation technical field, including mounting pole and anti-blocking subassembly, the middle part of mounting pole is equipped with the monitoring instrument, and the anti-blocking subassembly that is used for placing article to block the monitoring end is arranged at the lower end of mounting pole, and anti-blocking subassembly includes leaky net ball, monitoring pipe, rotary rod and cleaning pole, a monitoring pipe is installed in the leakage net ball, a rotating rod is installed in the middle of the leakage net ball, a cleaning rod is installed at the lower end of the rotating rod, and a threading hole is formed in the surface of the mounting rod. According to the water quality monitoring device, a monitoring pipe of a monitoring instrument is externally covered and protected through a leakage net ball, the monitoring pipe is prevented from being affected by objects such as plant root systems in irrigation water, the accura