Objective: To further improve the quality of mortality data for Beijing residents, through describing and analyzing the current death data gathered from different sources in Beijing. Methods: Data on death of the Beijing residents from Beijing Public Security Bureau, Beijing Civil Affairs Bureau and Beijing Centers for Disease Control and Prevention (BJCDC) were collated and compared. Timeliness of related data from the three different sources were described and analyzed. The overall consistency and reported timeliness of data from the three sources appear good, but the consistency on the causes of death needs to be improved. Result: Numbers of deaths from the three different sources were 95 318, 130 906 and 160 779 respectively, with 387 003 in total. Data from the Beijing Public Security Bureau and BJCDC seemed better in terms of integrity and accuracy. Data from the Beijing Public Security Bureau had the highest filling rate of ID card number while data from the Beijing Civil Affairs Bureau had the best timeliness. The most informative source of data was from the BJCDC. Conclusion: The overall quality of the exchanged death data from Beijing Public Security Bureau, Beijing Civil Affairs Bureau and BJCDC appeared good but remained some areas for improvement.