The invention relates to a polyether ketone ketone continuous production technology and belongs to the technical field of macromolecule special engineering plastics. The technology comprises the steps of adding paraphthaloyl chloride, isophthaloyl dichloride and diphenyl ether into a mixing kettle; adding a polar aprotic solvent to dissolve; adding the polar aprotic organic solvent into the mixing kettle at the same time; then adding lewis acid and lewis base to react after cooling to obtain a reaction solution; adding a mixed solution into the reaction solution to react to obtain a prepolymer; adding the prepolymer into a double-screw reactor to be extruded out to obtain a polymer; smashing the polymer at a machine head of the double-screw reactor; spraying a hydrochloric acid solution at the same time; filtering, washing with deionized water and drying to obtain the polyether ketone ketone. A strong shearing effect of the double-screw reactor is utilized to process high-viscosity materials, so that reaction time is reduced. The production technology disclosed by the invention can achieve continuous production, has a short production period and greatly improves utilization rate of the reaction kettle.