This paper puts forward a calculation method to set the closing time of circuit breaker based on recorded wave data. The basic data reflecting the working state of the circuit breaker is extracted from the recording data, such as the closing time, the closest voltage zero time, etc. According to the statistical analysis of the recording data in a period of time, the systematic error and random error of the circuit breaker closing time deviation are found, then the closing setting time of the circuit breaker is corrected based on this result. The application result shows that this method is simple and practical. It does not need additional tests and costs, and can obviously reduce the switching inrush current of the filter. The method is very suitable for the staff of the converter station to grasp the operation status of the circuit breaker in time and improve the efficiency of operation and maintenance. This work is supported by National Key Research and Development Program of China (No. 2017YFB0903700) and Science and Technology Project of China Southern Power Grid Company (No. CGYKJXM20160021).