In order to improve the floatability of minerals and separation method of fine coal slime,, increase the effect of dispersed flocculation flotation, weakly cohesive coal was taken as the research object, and electrolytes and changes under the coupling effect of dispersed flocculation were added. The order of electrolyte action was investigated for the effect of electrolyte-dispersion flocculation and dispersion-electrolyte flocculation on the flotation efficiency of fine coal. The results showed that the flocculation flotation effect after adding electrolyte was better than that under the same flocculation condition; the dispersion-electrolyte flocculation treatment process better than the flotation-flocculation electrolyte treatment. Among the different electrolyte, the best flotation effect was that after adding NaCl.