Abstract: The innovative results achieved in the terms of rongalite technique by sodium formate process in China in recent years as well as the situation that Chinese rongalite manufacturing industry leaping into the first rank of the world were summarized and introduced comprehensively in this paper.The innovative results included:production of rongalite from sodium formate,sulfur dioxide and sodium pyrosulfite;addition of sodium formate and sodium pyrosulfite to reactors in the form of crystal grain;addition of an organic compound which is able to react with thiosulfate to mother liquor;achievement of 60%～80% in recycle ratio of mother liquor;double increment of the yield of sodium dithionite;and improvement to 73% in utilization ratio of sodium formate.Meanwhile,the new problems of safety risk and environmental pollution caused by the addition of above mentioned organic compound to mother liquor were deeply analyzed.The corresponding suggestions were put forward on how to improve the safety technique,environmental protection technique and monitor and control technique for the Chinese rongalite enterprises.