A laser processing method for forming a modification region serving as a starting point of cutting inside a member to be cut along a planned cutting line by relatively moving an optical axis of a condenser lens along the planned cutting line of the member to be cut and by irradiating the member to be cut with focused laser light, wherein the laser processing method comprises a step of simultaneously forming a plurality of focused spots by irradiating regions where the modification regions are to be formed with a plurality of the focused laser lights, wherein the plurality of the focused spots is arranged so that regions of which temperatures are increased by the irradiation of the plurality of the focused laser lights fuse together, and the plurality of the focused spots is simultaneously formed on a cross section which is perpendicular to the optical axis of the condenser lens at positions having a predetermined depth from a surface of the member to be cut and which is parallel to the surface or on a cross section which is perpendicular to the surface of the member to be cut at the planned cutting line, and at least one of the plurality of the focused spots is formed on a projection line of the planned cutting line onto a cross section which is parallel to the surface or on the optical axis of the condenser lens, characterized in that the figure connecting the plurality of the focused spots is a triangle on the cross section which is parallel to the surface or on the cross section which is perpendicular to the surface, or is a parallelogram on the cross section which is parallel to the surface wherein two acute-angled vertexes of the parallelogram are located on the projection line of the planned cutting line onto the cross section which is parallel to the surface or on the cross section which is perpendicular to the surface wherein two acute-angled vertexes of the parallelogram are located on the optical axis of the condenser lens. the laser processing method comprises a step of simultaneously forming a plurality of focused spots by irradiating regions where the modification regions are to be formed with a plurality of the focused laser lights, wherein the plurality of the focused spots is arranged so that regions of which temperatures are increased by the irradiation of the plurality of the focused laser lights fuse together, and the plurality of the focused spots is simultaneously formed on a cross section which is perpendicular to the optical axis of the condenser lens at positions having a predetermined depth from a surface of the member to be cut and which is parallel to the surface or on a cross section which is perpendicular to the surface of the member to be cut at the planned cutting line, and at least one of the plurality of the focused spots is formed on a projection line of the planned cutting line onto a cross section which is parallel to the surface or on the optical axis of the condenser lens, characterized in that the figure connecting the plurality of the focused spots is a triangle on the cross section which is parallel to the surface or on the cross section which is perpendicular to the surface, or is a parallelogram on the cross section which is parallel to the surface wherein two acute-angled vertexes of the parallelogram are located on the projection line of the planned cutting line onto the cross section which is parallel to the surface or on the cross section which is perpendicular to the surface wherein two acute-angled vertexes of the parallelogram are located on the optical axis of the condenser lens.