A sprinkler includes a base, a tubular body disposed on the base, at least one control assembly mounted to the tubular body, and at least one nozzle set which has a plurality of nozzles aligned in a row and is disposed on the tubular body. The control assembly includes at least one push portion mounted with at least one connecting member which is pivotally connected to at least one guiding member with a plurality of sliding slots. The sliding slots are inserted by the nozzles for allowing the nozzles to be moved back and forth selectively. By movement of the push portion in an axial direction of the tubular body caused by manual operation, the guiding member is also moved radially to drive at least one of the nozzles to incline in turn.