The present invention relates to a rich oxygen sintering technology, which comprises ignition rich oxygen and heat preservation rich oxygen, namely, the rich oxygen sintering is used in both the ignition section and the heat preservation section of a continuous strand sinter machine. The rich oxygen sintering technology has the technical proposal that: first, ignition rich oxygen: oxygen with 93 percent purity produced with an adsorption oxygen producing system is delivered to a combustion-supporting pipeline after passing through a pressurization pump, a transfer pipeline, a flow dividing valve, and a pressure reduction valve, the oxygen and the combustion-supporting air in the combustion-supporting pipeline are mixed, to form the required combustion-supporting air with rich oxygen, and the oxygen content in the combustion-supporting air with rich oxygen is 22 to 25 percent; then ignition is performed after the combustion-supporting air with rich oxygen and coke oven gas is mixed with 2.7: 1 to 4.2:1 proportion of the combustion-supporting air with rich oxygen and the coke oven gas; second, heat preservation rich oxygen: oxygen with 93 percent purity produced with an adsorption oxygen producing system is delivered to an oxygen supply apparatus after passing through a pressurization pump, a transfer pipeline, a flow dividing valve, and a pressure reduction valve, the oxygen supply apparatus adds oxygen to the sintering heat preservation section through the periphery of a heat preservation cover, to lead the oxygen content in the heat preservation atmosphere after being filled with oxygen to achieve 22 to 30 percent, and the rich oxygen is supplied to the sintering material layer through forceful air draught.