Training the IQ of a guard dog requires a series of methods. Here are some key suggestions:

1. Basic training: Start with basic commands, such as "sit", "wait", etc. Through repeated training, the dog can execute these commands skillfully and accurately. At the same time, pay attention to the consistency of commands to avoid confusing the dog.

2. Socialization training: Let guard dogs have more contact with people and other animals, which will help them better adapt to various environments and improve their social skills. During the socialization training process, pay attention to the dog's reaction and correct bad behaviors in a timely manner.

3. Improve environmental adaptability: train dogs to perform activities in different environments, terrains and climate conditions. By exposing your dog to a variety of challenges, you can improve your dog's resilience and adaptability.

4. Strengthen intellectual stimulation: Provide intellectual games and puzzles for dogs, such as food hiding games, jigsaw toys, etc. These activities can stimulate dogs' curiosity and desire to explore, and promote intellectual development.

5. Positive incentives: During the training process, dogs should be given positive incentives and rewards in a timely manner. When the dog exhibits good behavior or completes training tasks, rewards such as food, toys, or petting can be given to enhance its motivation and self-confidence.

6. Continuous training: IQ training is a long-term process that needs to be continued. Even if the dog has mastered certain skills, they must be reviewed and consolidated regularly to ensure that the dog can maintain a high level of performance.