The invention discloses a ceramic flowerpot prepared by taking waste red clay brick powder as a main raw material, and belongs to the field of construction waste recycling. The flowerpot is shaped byadopting a gypsum mold grouting method, the slurry of the flowerpot takes the waste red clay brick powder as a main raw material, and the other components comprise auxiliary agents such as water, a suspending agent, a reinforcing agent, a water reducing agent, a preservative, a grinding aid, a coloring agent and the like. The prepared flowerpot has good air permeability and respiratory performance, high bending strength and low production cost, beautifies gardens or home environments, and realizes recycling of waste resources.