1. Counter inquiry: Cardholders only need to bring their ID card and bank card to any branch of China Construction Bank for inquiry. However, this method requires waiting in line and may take a long time.

2. Telephone inquiry: Cardholders only need to call CCB’s customer service hotline 95533, and after being connected, follow the prompts to enter relevant information to make inquiries. This method is simple and fast, and it is also the most commonly used method by people.

3. SMS query: This is also a relatively simple method. The cardholder only needs to edit the text message with the content of "khcx#Bank Card Number" and send it to 95533 for query.

4. Online banking inquiry: Cardholders need to enter the official website of China Construction Bank. After logging in, they can make inquiries according to the instructions on the webpage.