Indonesia is the world's largest guava producer, with an annual output of approximately 26.3 million tons, far exceeding countries such as India and Iran.This is thanks to its stable tropical climate, fertile volcanic soil, and widespread and balanced cultivation from Aceh to Maluku, with guava grown almost everywhere from commercial orchards to home gardens. Indonesian guava is rich in vitamin C, antioxidants, and fiber, making it a natural 'immune guardian,' and its strong adaptability allows farmers to grow it year-round. However, most of Indonesia's guava is consumed fresh or sold in traditional markets, with little deep processing. Although India is not the largest producer, it leads in guava processing, being called a 'guava powerhouse,' with processed products exported to over 30 countries. Major brands produce guava juice and ready-to-drink beverages, while some regions also supply jelly, jam, and even natural cosmetic ingredients, while actively cultivating superior varieties. In southern China, guava is used in traditional Chinese medicine, such as guava leaf drinks that help lower blood sugar and cholesterol. Taiwan leads in modern cultivation techniques, producing high-quality guava for export and manufacturing guava leaf extract for health supplements and skincare products. Vietnam's guava industry is growing rapidly in frozen pulp and concentrate products. Thailand exports high-quality organic jams, healthy snacks, and sugar-free guava juice to Japan and Europe. South Korea extracts antioxidants and vitamins from guava for natural cosmetics and skincare products. The reasons for Indonesia's backwardness in guava processing include insufficient processing facilities in production centers such as East Java and Sumatra; a lack of investment in agricultural downstreaming and research on improved varieties for the industry; strong domestic demand for fresh guava, leading to a focus on the local market; and less-than-ideal exports of processed products due to quality standards and global branding issues. Indonesia holds an advantage in guava production but lags behind other countries in processing. Without timely improvement, it will continue to be merely a raw material supplier rather than a holder of high-value-added products.