Sulfur coated urea, as an efficient slow-release fertilizer, plays an important role in modern agricultural production due to its unique slow-release properties, comprehensive nutrient supply, wide adaptability, and environmental safety. The sulfur coated urea production line includes raw material preparation, urea granulation, sulfur melting, sulfur coating, drying treatment, screening and grading, packaging and storage, covering multiple links from raw material preparation to final product packaging and storage.