The invention provides an oxygen candle oxygen supply system suitable for an emergency disaster prevention space. The system comprises an oxygen generating part, an oxygen storage and discharge part and a monitoring and controlling part, wherein the oxygen generating part comprises a reaction vessel and a heat insulation housing; the oxygen storage and discharge part comprises a bearing pressure vessel, an air outlet, a pressure reducing valve, a pressure gauge and an acoustical damper; the monitoring and controlling part comprises an oxygen sensor, a data analysis and control system, an air outlet control valve and a starting device. According to the system, effective utilization of an oxygen candle gas purification agent can be realized; heat dissipation of an oxygen candle can be effectively controlled and delayed, and heat burden in a finite space can be released; the oxygen release of the oxygen candle can be buffered; the uniform release of the oxygen in the space can be ensured; the intelligent and automatic control of the oxygen candle oxygen supply system can be realized, and the problem that hedging people can not operate the system can be solved; the remote start-up and independent control of the oxygen candle can be realized, and oxygen candles can be started and used according to a customized sequence, so as to avoid heat concentration.