The utility model discloses a powdery emulsion explosive's talcum powder feeding device, this talcum powder feeding device comprise vacuum pump, feed bin, quantitative screw conveyer, buffering storehouse, vacuum feeder, cyclone and hose. The utility model discloses a talcum powder vacuum of vacuum pump in with feed bin inhales in the feeder of vacuum and regularly releases the buffering storehouse through a pneumatic valve, releases transparent hose with the talcum powder under quantitative screw conveyer's precise measurement at last, adds through transparent hose in powdery emulsion's the explosive. The technical scheme of the utility model convenient operation, safe and reliable, effectively avoided when installing the talcum powder additional the friction of metal pipe wall and equipment and powdery emulsion explosive's safety in production has been guaranteed to the potential safety hazard that leads to the fact.