The invention relates to a method for preparing ceramic hollow microspheres by using a peristaltic pump assisted coaxial micro-fluidic system. The method comprises the following three steps: preparing precursor slurry, preparing a precursor and sintering. The dropping ceramic hollow microspheres precursor liquid drops are collected by utilizing a non-solvent induced phase separation principle, so that the outer surfaces of the dropping liquid drops are separated and cured, deformation and refusion of the liquid drops are effectively avoided, and the ceramic hollow microsphere precursor is obtained. The precursor is subjected to room-temperature drying and Muffle furnace sintering, and finally the ceramic hollow microspheres are obtained. Compared with the prior art, the ceramic hollow microspheres prepared by the invention are good in sphericity degree and controllable in sphere size and porosity, lots of energy and acid-base reagents do not need to be consumed, the process is simple and easy, and large-scale industrial production is easily realized.