The invention provides an intelligent profiling ditch cleaning device matched with a bed shaper. The ditch cleaning device comprises a soil breaking mechanism arranged below a back cross beam of the bed shaper as well as a collecting and transporting mechanism supported at the front end of a frame and arranged on the right side of the soil breaking mechanism; the ditch cleaning device further comprises a profiling sensing control mechanism and a soil crushing mechanism which are in circuit connection with a PLC. The ditch cleaning device can cooperate with the bed shaper to operate to clean uneven roads and large soil blocks in bed ditches and realize consistence of height difference between bed surfaces and bed ditch bottom surfaces on any cross section of the beds according to a profiling control circuit and device, so that the better bed ditch quality is practically provided for traveling of transplantation and harvesting machinery, and the survival rate and the yield of seedlings are increased.