A solar cell module comprising: a plurality of solar cells, each of the plurality of solar cells including a substrate and an electrode part positioned on the substrate; an interconnector configured to electrically connect adjacent solar cells of the plurality of solar cells to each other; and a conductive adhesive film positioned between the electrode part of each solar cell and the interconnector, the conductive adhesive film being configured to electrically connect the electrode part of each solar cell to the interconnector, the conductive adhesive film including a resin having a first thickness in an overlap area of the conductive adhesive film, the electrode part and the interconnector, and having conductive particles, which are dispersed in the resin, wherein the conductive particles are formed of metal particles having a radical shape, wherein the conductive particle having the radical shape indicates a particle in which a plurality of projections are non-uniformly formed on the surface of the metal particle having a shape like a sphere, wherein the conductive particles include first conductive particles having thicknesses greater than the first thickness, characterized in that the conductive particles further include second conductive particles having thicknesses less than the first thickness, wherein the first conductive particles are embedded in the interconnector and the electrode part, respectively, and wherein at least two second conductive particles of the second particles are overlapping in the overlap area, and a sum of the thicknesses of the overlapping second conductive particles is greater than the first thickness. a plurality of solar cells, each of the plurality of solar cells including a substrate and an electrode part positioned on the substrate; an interconnector configured to electrically connect adjacent solar cells of the plurality of solar cells to each other; and a conductive adhesive film positioned between the electrode part of each solar cell and the interconnector, the conductive adhesive film being configured to electrically connect the electrode part of each solar cell to the interconnector, the conductive adhesive film including a resin having a first thickness in an overlap area of the conductive adhesive film, the electrode part and the interconnector, and having conductive particles, which are dispersed in the resin, wherein the conductive particles are formed of metal particles having a radical shape, wherein the conductive particle having the radical shape indicates a particle in which a plurality of projections are non-uniformly formed on the surface of the metal particle having a shape like a sphere, wherein the conductive particles include first conductive particles having thicknesses greater than the first thickness, characterized in that the conductive particles further include second conductive particles having thicknesses less than the first thickness, wherein the first conductive particles are embedded in the interconnector and the electrode part, respectively, and wherein at least two second conductive particles of the second particles are overlapping in the overlap area, and a sum of the thicknesses of the overlapping second conductive particles is greater than the first thickness.