The invention discloses a cleaning method of a sectional warping machine. The cleaning method of the sectional warping machine comprises a walking support, an atomizing sprayer, a walking draught fanand an air guiding pipe. The cleaning method includes the following steps that S1, the air guiding pipe is fixed, wherein before the sectional warping machine is installed and fixed, a groove is formed in the ground, the air guiding pipe is fixedly embedded in an inner cavity of the groove, an air outlet of the air guiding pipe is made to face towards the two sides of the sectional warping machine, and an air blower is utilized for being in conduction with the air guiding pipe; and S2, a support is fixed, wherein two n-shaped supports are adopted and fixed to the two ends of the sectional warping machine. Under the existing process conditions, during running and stopping of the sectional warping machine, the bottom and the surface of the machine are cleaned through the air blower and the atomizing sprayer correspondingly, water mist sprayed out of the atomizing sprayer can be dried in a blowing manner, and therefore yarn dust residues and the rusting phenomenon on the surfaces of various parts of the machine are decreased, and therefore the overall service life of the sectional warping machine is prolonged, the production efficiency of the sectional warping machine is improved, theproducitivity of enterprises can be effectively improved, and very good popularization value is achieved.