Water quality monitor

The utility model relates to the technical field of water quality monitors, and discloses a water quality monitor which comprises a monitor body, connecting plates are fixedly connected to the two sides of the monitor body, connecting columns are fixedly connected to the side faces of the connecting plates from left to right in sequence, floating boxes are fixedly connected to the side faces of the connecting columns, and the floating boxes are fixedly connected to the side faces of the floating boxes. The bottom surface of the monitor body is fixedly connected with a connecting rope, and the bottom surface of the connecting rope is fixedly connected with a winding assembly. According to the water quality monitor, the winding assembly and the connecting rope are arranged, the sealing box sinks to the water bottom, when water quality monitoring needs to be conducted at different depths, a servo motor is connected with a power source to start working, a storage ring at one end of a transmission rod is driven to