The invention relates to a spherical potassium perchlorate production technology. The technology comprises the steps that naturally crystallized potassium perchlorate is adopted, by means of recrystallization technology preparation, the raw material potassium perchlorate is added into a refining tank, potassium perchlorate saturated liquid is added, a potassium perchlorate refined solution is obtained, the refined solution is continuously mixed with the circulation potassium perchlorate saturated liquid through a rotor flow meter, the mixture enters a multitubular heat exchanger after mixing is conducted, by means of dividing wall heat exchanging, heat brought by the refined solution is exchanged, the degree of supersaturation is formed, the grain size of precipitated potassium perchlorate reaches over 200 microns, the precipitated potassium perchlorate is sent into a centrifuge to complete solid-liquid separation, the solid is sent into a fluidized bed dryer to conduct drying, and a finished product is obtained. According to the spherical potassium perchlorate production technology, an existing ordinary crystallization device is utilized to conduct production, special equipment does not need to be designed, a large amount of cost is reduced, the technology is manure and practical, the spherical degree is high, the average grain size is far larger than 200 microns, the yield is large, and requirements of a modern market are met.