In rock climbing, not using a safety buckle (or protection equipment) greatly increases the risk, but there are some techniques that can help climbers reduce the possibility of falling to a certain extent. Please note that these techniques should not be regarded as a substitute for safety equipment, which is always an integral part of rock climbing. Here are some techniques that climbers can consider without using a safety buckle: 1. **Choose the appropriate route**: Choose familiar and relatively simple routes to climb. Avoid routes with high technical difficulty or danger. 2. **Good physical foundation**: Ensure good physical fitness and flexibility, and enhance muscle strength and endurance so that you can better cope with difficulties when you encounter difficulties. 3. **Perfect climbing technique**: Practice and master good climbing techniques, such as effective foot placement, weight transfer and body coordination. This can help reduce the chance of imbalance and mistakes. 4. **Visual judgment**: Before climbing, carefully observe the landing point and route of your hands and feet, and try to choose a stable grip and foothold to avoid losing balance. 5. **Correct falling technique**: Understand and practice how to fall safely, such as how to relax your body, keep your body balanced, and avoid falling hard to the ground. 6. **Buddy system**: If possible, climb with other climbers, observe and judge each other, and stop unsafe behavior in time. 7. **Avoid excessive fatigue**: Know your own limits and avoid continuing to climb when you are tired to reduce the risk of mistakes. 8. **Balance and concentration**: Maintain good balance and high concentration, pay attention to the surrounding environment at all times, and avoid distractions. 9. **Rest at the right time**: Rest and adjust in time when necessary to maintain the best physical and mental state. Please remember that although the above techniques may reduce the risk when there is no protective equipment, they cannot completely eliminate the risk of falling. Safety is always the most important consideration in rock climbing. It is recommended to always use appropriate safety equipment and receive professional training and guidance.