You can set the limit through mobile banking and online banking of China Construction Bank. The specific methods are as follows: Method 1: Mobile banking. After logging in, select Credit Card Management under the Credit Card tab and set it in the transaction limit settings under Credit Card Management. Method 2: Online banking. After logging in, select the card logo in the card manager under the credit card tab and set the transaction limit settings. "Current Transaction Limit" can set a cumulative limit of consumption and cash withdrawal in a billing period for each main card and subsidiary card under your name (the current cash withdrawal limit is 50% of the current transaction limit by default, and the available cash withdrawal limit will decrease with the cumulative increase of your current transaction). The cumulative limit will not decrease with your repayment, and the bill will be automatically restored and accumulated later. The adjustment of "Current Transaction Limit" will not affect your credit limit, but only limit the current available limit and cash withdrawal limit of each card. If the available limit of your card is insufficient due to the setting of "Current Transaction Limit", you can close or increase the "Current Transaction Limit" as needed.