The invention relates to the technical field of renewable resource recovery and utilization, and specifically relates to silicon dioxide microcrystalline powder equipment and a manufacturing technology. The equipment comprises a feed inlet, an igniter, a motor, a speed reducer, a blower fan, an air duct, a controller, a temperature sensor, a burning container, a spiral pusher, a central shaft, a discharge hole, and a chimney. Rice husks enter the burning container from the feed inlet. The igniter arranged on the upper part of the burning container ignites the rice husks. The blower fan supply oxygen to the burning container through the air duct. The temperature sensor sends the temperature in the burning container to the controller. The controller can control the air supply velocity of the blower fan. The speed of the motor is reduced by the speed reducer and then the motor drives the central shaft to rotate. Then the spiral pusher is driven by the central shaft to discharge finished product of silicon dioxide microcrystalline powder from the discharge hole. The chimney arranged on the upper part of the burning container is used to dissipate heat and discharge smoke. The temperature in the burning container is maintained in a range of 1610 to 1790 DEG C. The provided silicon dioxide microcrystalline powder equipment and manufacturing technology have the advantages that the automation degree is high, the work temperature is stable, the produced silicon dioxide microcrystalline powder has a fractal dimensional fracture surface and advantages of high purity, and good quality, and the efficiency is high.