AUSTAR provides pharmaceutical enterprises with aseptic liquid preparation systems of various dosage forms including infusion solutions, injectable products, eye drops and oral liquid, etc. The products are divided into water-soluble and oil-soluble. The system adopts 3D modular design with compact, beautiful and generous appearance. Main components of the system such as the tank, pump, heat exchanger, filter, valve, pipe, instrument and other main materials required by the system are all selected from international and domestic excellent brands to basically ensure the overall quality of the system. Selection of hardware of the equipment control system is based on standard modules widely used in the world, among which Siemens S7-1500 CPU series is used for PLC and TP1200 Comfort series touch screen is selected for HMI. The program design, inspection and composition conform to the GAMP5 v-model which is applicable to all S7 PLC systems. The program design was optimized with reference to GAMP5, which improved the stability of the program with support by relevant files to ensure the traceability of the system. The system can realize automatic control of production, cleaning and sterilization. To check whether the liquid preparation system can stably manufacture the quality products under various possible conditions in future, the system will be validated with major activities and tests including risk assessment (RA)/design qualification (DQ)/installation qualification (IQ)/operation qualification (OQ).