This study presents a bioinspired polymeric supramolecular column-based light-harvesting platform that efficiently and controllably captures and transfers light energy. Inspired by the natural light-harvesting process of purple photosynthetic bacteria, the platform uses a discotic columnar liquid crystalline polymer (PTCS) as the donor and Nile red (NiR) as the acceptor. The supramolecular columns enable an ultrahigh donor/acceptor ratio of 20,000:1 and an antenna effect exceeding 100, facilitating efficient energy transfer. The spatial confinement within the columns allows for dynamic full-color tunable emission, suitable for information encryption applications with spatiotemporal regulation. The system is constructed by modular assembly of donor/acceptor chromophores in supramolecular columns. The PTCS polymer, with a slightly twisted non-planar tricyanotristyrylbenzene (TCS) structure, forms columnar liquid crystalline phases, enabling efficient excitation energy diffusion. When intercalated with NiR, the resulting supramolecular columns exhibit enhanced energy transfer efficiency. The system demonstrates dynamic full-color tunable emission, including pure white-light emission with a quantum yield up to 0.28. The modular columnar assembly allows for control over the energy transfer process, enabling dynamic color tuning and multi-level information encryption. The supramolecular columns also exhibit enhanced light-harvesting efficiency due to the presence of columnar liquid crystallinity and polymerization-induced intercolumnar correlation. These factors optimize the energy transfer pathways, leading to efficient light absorption and emission. The system's performance is further enhanced by the dynamic ordering of liquid crystals, which facilitates energy diffusion and avoids defect-induced interruptions. The study demonstrates the potential of the supramolecular column-based light-harvesting system for applications in artificial photosynthesis and dynamic multi-color emissive materials. The system's ability to control energy transfer and emit light in a full-color range makes it suitable for information encryption with spatiotemporal regulation. The results highlight the effectiveness of the bioinspired design in achieving high-efficiency light-harvesting and controllable energy transfer.This study presents a bioinspired polymeric supramolecular column-based light-harvesting platform that efficiently and controllably captures and transfers light energy. Inspired by the natural light-harvesting process of purple photosynthetic bacteria, the platform uses a discotic columnar liquid crystalline polymer (PTCS) as the donor and Nile red (NiR) as the acceptor. The supramolecular columns enable an ultrahigh donor/acceptor ratio of 20,000:1 and an antenna effect exceeding 100, facilitating efficient energy transfer. The spatial confinement within the columns allows for dynamic full-color tunable emission, suitable for information encryption applications with spatiotemporal regulation. The system is constructed by modular assembly of donor/acceptor chromophores in supramolecular columns. The PTCS polymer, with a slightly twisted non-planar tricyanotristyrylbenzene (TCS) structure, forms columnar liquid crystalline phases, enabling efficient excitation energy diffusion. When intercalated with NiR, the resulting supramolecular columns exhibit enhanced energy transfer efficiency. The system demonstrates dynamic full-color tunable emission, including pure white-light emission with a quantum yield up to 0.28. The modular columnar assembly allows for control over the energy transfer process, enabling dynamic color tuning and multi-level information encryption. The supramolecular columns also exhibit enhanced light-harvesting efficiency due to the presence of columnar liquid crystallinity and polymerization-induced intercolumnar correlation. These factors optimize the energy transfer pathways, leading to efficient light absorption and emission. The system's performance is further enhanced by the dynamic ordering of liquid crystals, which facilitates energy diffusion and avoids defect-induced interruptions. The study demonstrates the potential of the supramolecular column-based light-harvesting system for applications in artificial photosynthesis and dynamic multi-color emissive materials. The system's ability to control energy transfer and emit light in a full-color range makes it suitable for information encryption with spatiotemporal regulation. The results highlight the effectiveness of the bioinspired design in achieving high-efficiency light-harvesting and controllable energy transfer.