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Herbal drug technology plays a crucial role in transforming botanical materials into effective medicinal products. Standardization is a fundamental step in this process, ensuring the establishment of consistent biological activity, a well-defined chemical profile, and a comprehensive quality assurance program for the production and manufacturing of herbal medicines. Standardization aims to enhance the safety, efficacy, and reproducibility of herbal formulations, addressing the challenges posed by variations in raw materials, extraction processes, and formulation techniques. The World Health Organization (WHO) has established specific guidelines for assessing the safety, efficacy, and quality of herbal medicines, which are essential for achieving global harmonization in herbal drug regulation. These guidelines emphasize the need for rigorous quality control measures, including authentication of plant materials, evaluation of active constituents, and adherence to Good Manufacturing Practices (GMP). The standardization process involves various analytical and pharmacognostic techniques, such as high-performance liquid chromatography (HPLC), gas chromatography-mass spectrometry (GC-MS), ultraviolet-visible (UV-Vis) spectroscopy, and nuclear magnetic resonance (NMR) spectroscopy. This review provides an in-depth analysis of various techniques employed in the extraction, characterization, and standardization of herbal medicines, including herbal nanomedicines. It highlights the importance of regulatory compliance and quality assurance in the development of herbal formulations, ensuring their safety and efficacy for global therapeutic use. The study underscores the need for interdisciplinary research and collaboration between traditional herbal medicine practitioners, pharmaceutical scientists, and regulatory authorities to establish robust standardization protocols. Ultimately, the implementation of standardized methodologies will facilitate the integration of herbal medicines into modern healthcare systems, promoting their acceptance and utilization worldwide.