Pyrolysis is a mainstream technology for biomass energy utilization , but theoretical simulation, verification feedback on the coordinated pyrolysis process , material conversion rules , and energy efficiency characteristics of multi-source biomass wastes , particularly Chinese medicinal residue,are still relatively scarce. In this paper, Aspen Plus industrial simulation software with a complete physical property system was used to establish a simulation model for biomass waste pyrolysis to produce carbon, and its reliability was verified. The actual pyrolysis process data of waste pine wood from agricultural forest source were systematically simulated, the material flow and energy flow during the pyrolysis process of the sargentgloryvine stem medicine residue was analyzed, and the conversion efficiency was comprehensively evaluated. The results showed that the energy consumption of the pyrolysis system was 2580.7 MJ/h, and the energy efficiency was 53.0% under the current single waste condition. At temperatures ranging from 500 to 550 °C , 30%~60% of traditional sargentgloryvine stem medicine residue was simulated to be incorporated into the collaborative pyrolysis , which resulted in optimal material recycling eficiency and energy efficiency. The system's energy consumption was reduced by 30%~60%, and the energy efficiency of the system increased by 3.0%~6.0%, which could provide scientific basis for the collaborative pyrolysis of Chinese medicine residue.