Abstract: The paper aims to carry out a laboratory test on the influence of emitter depth and the flow on the development of wet body in drip irrigation, according to the development demand of alfalfa shallow drip irrigation. Using sandy loam from shallow drip irrigation experimental zone of alfalfa in Awei Irrigation district, Qinghe County, Alay area, Xinjiang, the authors carried out the test on the development process and characteristics variation of wetting front in shallow drip irrigation aiming at different dripper depth and flow, and set 3 dripper depth treatments of 5 cm, 10 cm, and 15 cm, the flow ranged from 0.8-2.5 L/h. The results showed that: the wetting front shape of 0 flux surface under different depth and flow was approximately elliptic; the horizontal and vertical migration distance of wetting front increased with the infiltration time respectively and there was power function relationship between horizontal and vertical migration distance of wetting front and infiltration time; the ratio of horizontal and vertical migration distance of wetting front increased with the increasing of dripper depth; the vertical migration distance of wetting front first increased then decreased with the increasing vertical depth, the vertical migration distance and vertical depth had a quadratic function relationship. The above results have reference value for the parameters design of shallow drip irrigation.