The invention relates to a beneficiation pre-enrichment method of weathered calcite carbonate type rare earth ore. The beneficiation method comprises the following steps of S1, performing grading on the ore, and discarding coarse tailings; S2 performing size mixing on the fine-grain-grade ore, grinding the ore and performing grading; S3, performing jigger re-separation to obtain jigglingly-separated rough concentrate and jigglingly-separated tailings; S4, performing spiral concentrator re-separation to obtain spiral rough concentrate and spiral tailings; S5, performing high gradient strong magnetic separation to obtain magnetically-separated coarse concentrate and magnetically-separated tailings; S6, performing centrifugal machine re-separation to obtain centrifuged coarse concentrate andcentrifuged tailings; and S7, combining the jigglingly-separated coarse concentrate, the spiral coarse concentrate, the magnetically-separated coarse concentrate and centrifuged coarse concentrate into rare earth ore pre-enriched total coarse concentrate. The beneficiation method is large in treatment amount, low in cost, small in occupied area, high in sorting efficiency and strong in adaptability.