The invention provides soil sampling equipment for Yellow River governance water conservancy projects. The equipment comprises stainless steel teeth, a bottom-sealing sampling cylinder, a rotating motor, a telescopic cylinder, a cylinder mounting frame, a supporting stand column, a moving rack, supporting legs, moving wheels, a sampling inner cylinder, dismounting bolts, a through hole, an adjustable soil surface weed cleaning machine structure, an adjustable soil surface removing blade structure and an adjustable soil post-sampling transfer plate structure. By arranging a weed cleaning cutterwheel and a cleaning motor, weeds on the surface of to-be-sampled soil can be cleaned, so that smooth sampling work is guaranteed; through the arrangement of a sliding machine base, a U-shaped sliding block, a linear sliding rail and an adjusting bolt, the position of the cleaning motor can be adjusted according to the cleaning requirement, so that cleaning operation is facilitated, and the cleaning cleanliness is guaranteed; a lifting ring and a removing blade main body are arranged, so that the surface of soil on which the weeds are removed and which is to be sampled is removed, and the sampling cleanness is guaranteed.