The utility model discloses an intelligent multi-parameter water quality monitoring buoy which comprises a processor, a GPRS (general packet radio service) wireless module, a sensor set, a buoy main body and a power supply unit, wherein the sensor set, the GPRS wireless module and the power supply main unit are electrically connected to the processor; the processor, the sensor set, the GPRS wireless module and the power supply unit are arranged on the buoy main body; and a water quality monitoring result is transmitted to the processor through the sensor set, processed through the processor and transmitted to a monitor center through the GPRS wireless module. According to the intelligent multi-parameter water quality monitoring buoy, the multi-parameter free combination can be achieved according to the water sample collection requirements, a monitor station can be quickly built, the buoy can be comprehensively distributed in water areas required to be monitored, the data can be monitored in real time, a reagent is not required, the secondary pollution cannot be caused, the grid electricity is not required, and the maintenance workload is low.