The present invention discloses Compound Salvia Miltiorrhiza Sustained-release Tablet. The controlled release mode includes skeleton sustained and controlled release, membrane sustained and controlled release, and skeleton-membrane sustained and controlled release. The formulation type includes troche, capsule, grain, pill, suspensions, etc. The experimental result of in vitro release of CompoundSalvia Miltiorrhiza Sustained-release Tablet provided by the present invention can effectively maintain the release for more than 8 hours and the in vitro accumulative release is in line with Higuchiequation. Compared with the conventional Compound Salvia Miltiorrhiza Tablet, the present invention can delay the drug release and maintain the effective plasma concentration for a long time.