The invention discloses a composite, a raw material composition, a bone repair body, a preparation method and an application. The raw material composition of the composite comprises the following components of tantalum material powder and polyaryletherketone powder, wherein the volume ratio of the tantalum material powder to the polyaryletherketone powder is(1:4) to (1:1), and the particle diameter of the tantalum material powder is 100nm-5 [mu]m. The composite prepared by the composition has favorable bioactivity and compatibility, is good in mechanical properties, can promote cell adhering,proliferation and polarization, can stimulate bone growth, can accelerate bone healing, and can reduce healing time after a bone implant material is implanted. The bone repair body prepared by the composition cannot cause inflammatory reaction after being implanted, the mechanical properties of the bone repair body including modulus of elasticity, toughness, rupture strength and the like, can cooperate with human bones, and the bone repair body cannot cause negative effect of loosening of the bone repair material caused by stress shielding, bone absorption and the like, and can meet requirements of clinical application for bone repair.