disclosed is a low - temperature preparation method for a polyaryletherketone inorganic composite material , in particular a method for the low - temperature synthesis of a polyaryletherketone resin on a nano / micron - scale inorganic seedbed . the method comprises : adding nano / micron - scale inorganic material particles to a reaction system of a polyaryletherketone high - molecular polymer , and realizing the blending of inorganics in a high proportion and organics while completing the one - step polymerization reaction , so that the common thermal degradation problem of the organic materials induced during the melting , blending and thermal processing is avoided . the composite material can be used in the technical fields of aerospace , industry , medicine and the like .