Oily sludge treatment method

The invention provides an oily sludge treatment method. The oily sludge treatment method comprises the specific steps that oily sludge to be treated, diesel oil, a dispersing agent and water are taken out in proportion; a proportional amount of diesel oil is added to the oily sludge to be treated and taken in proportion in the step 1, stirring is performed to make them be gradually in a flowing state; after the step 2 is completed, a proportional amount of dispersing agent and a proportional amount of water in the step 1 are added to the evenly-stirred oily sludge, even stirring is performed to make the mixture form a stable emulsion, the viscosity of the emulsion is determined and is made smaller than 25 mPa.s; after the step 3 is completed, the treated oily sludge is used for standby application. The oily sludge treatment method uses the oily sludge from a Changqing oilfield as a main raw material, treats the oily sludge and is low in cost. The dispersing agent added in the oily sludge makes the oily sludge