The invention discloses a process for extracting clean coal from middling coal, and belongs to the technical field of coal mine flotation processes. The process comprises the following steps of S1 pretreatment, and specifically, pretreatment of the middling coal is carried out, and impurities are removed; S2, crushing, and specifically, the pretreated middling coal is crushed; S3, stirring. and specifically, a mixture is obtained by stirring after the crushed middling coal is mixed with water and a flotation agent; S4, flotation, and specifically, flotation is carried out on the mixture to obtain the preliminary clean coal and tail coal; and S5, clean coal obtaining, and specifically, the clean coal is obtained after the preliminary clean coal is dehydrated. According to the process for extracting the clean coal from the middling coal, the clean coal in middling coal can be extracted through simple impurity removal, crushing, stirring, flotation and dehydration, compared with the multiple times of crushing, grading and screening in the prior art, the process is simple, an independent production unit can be formed, the influence is not caused to an original production process, thegrading is not needed after the crushing, stirring and flotation are directly carried out, and the clean coal in the middling coal can be fully extracted.