The ZPP-40A straight-tube bottles filling machine is applicable to the packing of bigger and thinner tablets which are orderly fed into straight-tube bottles in a single row in an overlapping way. The device utterly adopts a PLC for centralized control. Its verified in fiber and photoelectric detections and other kinds of detections to have steady performance and reliably automatic operation. It can automatically give alarms and shut down in case of no tablets, bottles of covers. Its part in contact with the tablets is made of superior 304 or 316 stainless steel, which totally meets the GAP requirement. Thus, it is the best device for pharmaceutical factories, health product factories and food factories to pack effervescent tablets and other products alike.