Self-adaptive spreading vehicle and spreading method

The invention discloses a self-adaptive spreading vehicle and a spreading method. The self-adaptive spreading vehicle comprises a vehicle body, the vehicle body is connected with a cross beam, the cross beam is connected with a plurality of nozzles, the vehicle body is connected with a transverse guide rod, the transverse guide rod is slidably sleeved with a transverse guide sleeve, and the transverse guide rod is connected with the transverse guide sleeve through a second spring; the transverse guide sleeve is connected with a baffle arranged in the vertical direction, a transverse guide wheel matched with the road edge stone is rotationally arranged on one side of the baffle, and the baffle is further connected with a transversely-arranged rack and a fixing plate. An adjusting rod is slidably connected in the nozzle, the upper end of the adjusting rod penetrates out of the nozzle and is connected with a lead screw, the lead screw is provided with a nut in a matched mode, and the upper end of the lead screw