The utility model discloses an auxiliary machinery people's device for engineering pipeline construction, a serial communication port, including the defeated native device of box, mobile device, cutting blade rotating device and spiral, wherein, the box comprises housing seat and box lid, the mobile device drive tool bit cutting soil of moving along, cutting blade rotating device drives the tool bit rotation and cuts soil, the defeated native device of spiral is with earth material along silo axial displacement under the axial component effect of blade normal thrust. The utility model discloses a work load, simple structure, shared space are little, engineering cost low that's an auxiliary machinery people's device for engineering pipeline construction adopt series connection mechanism satisfy the motion of procedure given and cutting soil required is disclosed. Efficiency of construction and speed, security performance height have been guaranteed in the preset motion of automated control equipment betterly. The utility model discloses utilize non - excavation method to lay, to compare the work progress simple, with low costs with the first method of excavation back landfill.