Jaw crushers are indispensable primary crushing equipment in industries such as mining, construction materials, and road construction. The jaw plate (tooth plate), as its core wear-resistant and consumable part, directly affects the equipment's crushing efficiency, product quality, and production costs. This article begins with the basic structure of the jaw plate, providing a detailed analysis of its material properties, tooth profile design, compatibility principles, and selection guidelines. It also offers practical advice based on common selection pitfalls. Whether you are an equipment purchaser, maintenance engineer, or production manager, you can gain key knowledge for scientific selection and efficient use from this guide, helping to achieve cost-effective and efficient crushing production goals.