Water quality on-line monitor capable of being remotely controlled

The invention relates to the technical field of water quality monitoring and particularly relates to a remotely controllable water quality on-line monitor. The monitor comprises a shell, a processor module, a data transmission module, a detection box, a water quality detection instrument and a remote operation end, wherein a filter box is installed above the left side of an inner cavity of the shell, and a through groove is formed in the right side of the filter box in a penetrating mode; a box body is arranged in the filter box, a filter screen is arranged on the surface of the bottom of the box body in a penetrating mode, and a plugging plate is connected to the right side of the box body in a bolted mode. The monitor is advantaged in that large impurities in sample water can be filtered, the influence of the large impurities on monitoring can be avoided, the filtered impurities can be discharged after the operation is finished, workers can conveniently clean the impurities, and problems that most of water