The invention discloses a bubbler root irrigator comprising threaded labyrinth channels. The bubbler root irrigator comprises a circular tube, wherein threaded labyrinth channels are arranged on the tube wall of the circular tube; a water inlet, a sand sluicing hole and a ventilating and water-guiding hole are formed on the circular tube; a filter screen is arranged in the water inlet; the water inlet is communicated with the threaded labyrinth channels; and a water outlet is formed at the tail part of the threaded labyrinth channels. Compared with the conventional micro-irrigator, the bubbler root irrigator of the invention integrates the threaded labyrinth channels, the water inlet, the sand sluicing hole and the ventilating and water-guiding hole into a whole, so the bubbler root irrigator is applicable in the bubbler root irrigation of various soils; and compared with exposed tubes on the ground, the service life of the bubbler root irrigator is prolonged from 3 to 5 years to morethan 20 years, and the construction cost thereof is reduced by more than 20%.