The invention discloses a method for removing sintering flue gas fine particles based on pulse discharge and belongs to the technical field of pollutant emission reduction in the sintering process. The method comprises the steps that the fine particles in flue gas are charged through pulse discharge; agglomeration liquid with positive charge and agglomeration agent fogdrops with negative charge are sprayed into the flue gas; the charged fine particles and the agglomeration agent fogdrops with the opposite charge are agglomerated under the effect of attractive force of the opposite charge and grow up to form particle agglomerates; and the particle agglomerates are removed from the flue gas through capturing and collecting. According to the method, the fine particles are charged through pulse corona, the agglomeration effect of the particles is enhanced by spraying a charged agglomeration agent into agglomeration units, the agglomeration removing efficiency of the fine particles is improved, and emission of the fine particles in the iron core sintering process is reduced.