In today's world, with the advancement of science and technology, new methods have introduced to exploit nature and utilize its resources optimally. One of these methods is supercritical extraction, which, as an advanced and efficient technique, has created a revolution in the extraction of effective compounds from medicinal plants. This technology provides the possibility of obtaining pure and high-quality extracts in a safe, environmentally friendly and efficient manner. The book you are holding now examines the application of supercritical extraction in extracting extracts from medicinal plants. This work attempts to examine the advantages and capabilities of this technology in the field of producing effective pharmaceutical, food and cosmetic ingredients and to introduce you to a new solution for the optimal use of natural resources. This book has 3 chapters, including:Introduction: A Conversation with the ReaderChapter I: Supercritical FluidChapter II: Effect of Ultrasonic Waves on the Extraction of Natural Products by Supercritical ExtractionChapter III: Modeling in Supercritical Extraction and References.