The study presents an integrated automatic system for the continuous production of biomass flash graphene (FG) with a significantly reduced carbon footprint. The system, controlled by a programmable logic controller, automates the entire process, including mechanical control, FJH reaction, and electrical control. This approach overcomes the limitations of traditional manual and semi-automatic systems, achieving a production rate four times higher than first-generation technologies. The system employs a pyrolysis-FJH nexus, where pyrolysis releases pyrolytic volatiles from biomass, followed by FJH to optimize the FG structure. This method reduces carbon emissions by 80.1% to 86.1% compared to biomass-based FG production, making it a more environmentally friendly and cost-effective solution. The system can produce high-purity FG from various biomass sources, including sawdust, bamboo, and rice straw, with excellent properties such as dispersibility, catalytic activity, and solar absorption. The continuous production process is validated through Raman, XPS, AFM, and TEM analyses, demonstrating the few-layer structure and high purity of the FG. The economic benefits and environmental impacts of the system are also evaluated, showing its potential for large-scale industrial application.The study presents an integrated automatic system for the continuous production of biomass flash graphene (FG) with a significantly reduced carbon footprint. The system, controlled by a programmable logic controller, automates the entire process, including mechanical control, FJH reaction, and electrical control. This approach overcomes the limitations of traditional manual and semi-automatic systems, achieving a production rate four times higher than first-generation technologies. The system employs a pyrolysis-FJH nexus, where pyrolysis releases pyrolytic volatiles from biomass, followed by FJH to optimize the FG structure. This method reduces carbon emissions by 80.1% to 86.1% compared to biomass-based FG production, making it a more environmentally friendly and cost-effective solution. The system can produce high-purity FG from various biomass sources, including sawdust, bamboo, and rice straw, with excellent properties such as dispersibility, catalytic activity, and solar absorption. The continuous production process is validated through Raman, XPS, AFM, and TEM analyses, demonstrating the few-layer structure and high purity of the FG. The economic benefits and environmental impacts of the system are also evaluated, showing its potential for large-scale industrial application.