The invention relates to a test method for evaluating the initial forming capacity of a micro-surfacing (or slurry seal) slurry mixture. The test method comprises the following steps: preparing a slurry mixture sample; performing an abrasion test on the sample by using an abrasion instrument, and respectively weighing the mass of the sample before and after abrasion; through the ratio of the massdifference of the sample before and after abrasion to the abrasion area of an abrasion head rubber tube in the abrasion instrument, acquiring a parameter-abrasion loss value for evaluating the initialforming capability of the slurry mixture, wherein the smaller the abrasion loss value is, the better the initial forming capability of the slurry mixture is, and otherwise, the worse the abrasion loss value is. According to the test method, the effect of the wheel on the slurry mixture at the initial stage can be well simulated; the numerical value obtained by the test method is more quantitativeand more accurate, errors caused by artificial observation are reduced, and the credibility and reproducibility of the measured numerical value are improved; in addition, the test method can be usedfor evaluating the compatibility, cohesiveness and abrasion resistance of the slurry mixture at the initial stage of maintenance, and the evaluation is more comprehensive.