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This article introduces the necessity to apply technical collection and preservation of Cratoxylon prunifolium leaves as materials for processing of dietary supplements and drugs. The main contents of the article mention harvesting techniques such as: age began harvesting trees, selecting twig for picking, pick-up times of the year, picking technique; on preliminary processing and preservation: composting, drying, storage, tracking and recording... to create a clean and safe raw material in long-term preserving for processing products.