The invention discloses a segmented type unit pump oil return pipe. The segmented type unit pump oil return pipe comprises a segmented type oil return main pipe and multiple oil return branch pipes. One end of the segmented type oil return main pipe is blocked, and the other end of the segmented type oil return pipe is connected with an oil return connector for fuel oil. The segmented type oil return main pipe specifically comprises multiple oil return pipe sections and tee joints connected with the oil return pipe sections, wherein every two adjacent oil return pipe sections are connected through connectors on the two sides of the corresponding tee joint. One end of each oil return branch pipe is connected to a connector of a corresponding split type unit pump, the other end of each oil return branch pipe is connected with an upper connector of the corresponding tee joint, and therefore the oil return branch pipes and the segmented type oil return main pipe are connected to form the segmented type unit pump oil return pipe. The segmented type unit pump oil return pipe bears small stress, the risk of pipe breakage is lowered, and the reliability of the pipe is improved; the refitting time is shortened, and the oil leakage risk caused by repeated assembly and disassembly of the connectors of the unit pumps is lowered; and the production technological requirements of the segmented type unit pump oil return are simple, and the pipe packaging and transportation difficulty is lowered.