An substrate processing apparatus includes a substrate holding unit, a process liquid supplying unit, a first guide portion provided around the substrate holding unit for guiding the process liquid scattered from the substrate, a second guide portion provided outside the first guide portion for guiding the process liquid scattered from the substrate, a third guide portion provided outside the second guide portion for guiding the process liquid scattered from the substrate, a first recovery channel provided outside the first guide portion integrally with the first guide portion for recovering the process liquid guided by the second guide portion, a second recovery channel provided outside the first recovery channel integrally with the first guide portion for recovering the process liquid guided by the third guide portion, and a driving mechanism for independently moving up and down the first, second, and third guide portions.