The invention relates to the technical field of sandstorm prevention and control systems, in particular to an assembled sand collection and water forestation protection system suitable for sandstorm areas. The assemble sand collection and water collection forestation protection system suitable for wind sand area comprises a loading and unloading sand blocking dike; The top of the detachable sand barrier is provided with a buffer net for suppressing wind and dust. A sand collection ditch is arranged between adjacent loading and unloading sand barriers, and a vegetation protection zone is planted in the sand collection ditch; The detachable sand barrier comprises a plurality of dam blocks; The windward surface of the loading and unloading sand barrier is cambered, the cambered surface is arranged along the height direction of the loading and unloading sand barrier, and the cambered surface forms a depression relative to the loading and unloading sand barrier; The arc surface is providedwith a guide groove, and the guide groove is arranged along the height direction of the detachable sand barrier. The invention provide an assembled sand collection and wat collection forestation protection system suitable for a sand-blown area, which aims to solve that technical problem in the prior art that gobi area is easy to form gobi wind-sand flow to damage road traffic facilities under theaction of extremely large wind.