A liquid processing method includes: accommodating a substrate horizontally in each of a first processing region and a second processing region, for performing therein a process on the substrate by a processing solution from a nozzle; rotating a rotary body about a vertical axis; keeping a plurality of processing nozzles provided at the rotary body; supplying different kinds of processing solutions to the substrate from the plurality of processing nozzles; holding a processing nozzle selected from the plurality of processing nozzles by a nozzle holder provided at the rotary body; transferring the nozzle holder into selected one of the first and the second processing regions by a nozzle transfer device; and rotating the rotary body by a rotation driving unit so as to allow a front of the nozzle holder in a forward/backward direction thereof to face the selected one of the first and the second processing regions.