ObJective: To study the formation technology of YangJing capsule. Method: Moisture absorption percentage and particles qualified rate were used as index to screen proper excipient and the best dry granulating technology conditions respectively. The inspected angle of repose

bulk density and the critical humidity were also investigated. Result: Dextrin as excipients had a good anti-wet performance. The best method to make granula was as follows: rollers speed at 7 r·min-1

transmission speed at 40 r·min-1

0.4 mm as the distance of two rollers and 80% ethanol as wet agent. Conclusion: The molding technology was reasonable

and can provide reliable basis for production.