A multifunctional irrigation pliers and method of piercing, cutting, and fitting an irrigation tube with an irrigation pliers. The irrigation pliers enables the forming of a hole in an irrigation tube, the placement of a nozzle or a drip emitter into the formed hole or a terminal opening of the irrigation tube, the cutting of a length of the irrigation tube, and general deforming of sections of the irrigation tube. A first jaw and a second jaw are pivotally attached together at a pivoting joint to allow the jaws to be pivotally displaced toward and away from each other by moving a first handle and a second handle to and away from each other. The inner surfaces of the jaw comprise a blade, a spike, and retaining slots sequentially positioned across the jaws to engage the irrigation tube, the nozzle, and the drip emitter.