Abstract: An experimental study is made on recovering gold in ferrimanganic black earth ores with high sliming and high oxidation. In this experiment, pyrite is applied as a carrier to recover gold from black earth ores. And these results of some main conditions from carrier flotation have been compared, the results show that the recovery of fine grained gold have been increased by applying sulphonating kerosene as a subsidiary collector, at the same time, it also decrease the consumptions of xanthate and No.2 oil.