The invention relates to an intelligent stirring-smashing-type sewer dredging device and belongs to the technical field of engineering machinery. According to the device, a combination dredging methodof high-pressure water jet, drill bits and monitoring is adopted, firstly, a drill bit device is used for stirring and smashing a blocking part of a sewer, a high-pressure water jet device is used for flushing the stirred and smashed blocking part and the pipe wall, and then a suction method is used for sucking loose debris; meanwhile, a camera shooting device and a detection illuminating lamp are arranged on a vehicle body, a row of cutting blades are arranged at each edge of the vehicle body, the stirring-smashing drill bits are arranged on a vehicle head, if the large-sized debris such asplastic bags, straw and stone blocks exist, stirring-smashing and cutting are facilitated, and the debris is quickly conveyed upwards by using the suction device and a conveying belt; a large quantityof human resources, physical resources and financial resources are saved, the device is widely suitable for sewer dredging, blocking unchoking and dredging of deep ditches and deep wells in small-sized and medium-sized cities, the cost is saved, the dredging efficiency is improved, and the device has wide application prospects.