<p>A coating machine is provided to improve the tact time of coating machine and to shorten the adhesion time by suction force. The substrate support unit generates the suction force in the suction hole formed in the surface of the stage(21) to absorb the substrate(10). The coating solution is discharged from the application unit while moving around the substrate. The main pipeline(51) and the connected sub piping(52) are connected to the suction force generator. The main valve for opening and closes the main pipeline is installed at the main pipeline. The subvalve is installed at the sub pipeline.</p>
