A drilling tip which is attached to a tip portion of a drilling tool to perform drilling, the drilling tip comprising: a tip body which is provided with a posterior end portion buried in a tool body of the drilling tool, and a tip portion protruding from a surface of the drilling tool and being tapered toward a tip side of the tip body ; and a hard layer which is formed on a surface of the tip portion of the tip body , wherein the hard layer is provided with an outermost layer and an intermediate layer interposed between the outermost layer and the tip body , the outermost layer is a cubic boron nitride sintered material having 70 to 95 vol% of cubic boron nitride grains and a binder phase , when a cross-sectional structure of the outermost layer is observed, a binder phase having a width of 1nm or greater and 30nm or less and containing Al, B, and N, and in which an atomic ratio of an O content to an Al content is 0.1 or less exists between neighboring cubic boron nitride grains , when a cross-sectional structure of the outermost layer is observed, a ratio of: a number of cubic boron nitride grains which have the binder phase having a width of 1nm or greater and 30nm or less, and containing Al, B and N between neighboring cubic boron nitride grains : to a total number of the cubic boron nitride grains , is 0.4 or greater, and a ratio of: a number of cubic boron nitride grains which have the binder phase having a width of 1nm or greater and 30nm or less, containing Al, B and N, and having an atomic ratio of an O content to an Al content of 0.1 or less between neighboring cubic boron nitride grains : to the number of cubic boron nitride grains which have the binder phase having a width of 1nm or greater and 30nm or less and containing Al, B and N between neighboring cubic boron nitride grains , is 0.5 or greater. a tip body which is provided with a posterior end portion buried in a tool body of the drilling tool, and a tip portion protruding from a surface of the drilling tool and being tapered toward a tip side of the tip body ; and a hard layer which is formed on a surface of the tip portion of the tip body , wherein the hard layer is provided with an outermost layer and an intermediate layer interposed between the outermost layer and the tip body , the outermost layer is a cubic boron nitride sintered material having 70 to 95 vol% of cubic boron nitride grains and a binder phase , when a cross-sectional structure of the outermost layer is observed, a binder phase having a width of 1nm or greater and 30nm or less and containing Al, B, and N, and in which an atomic ratio of an O content to an Al content is 0.1 or less exists between neighboring cubic boron nitride grains , when a cross-sectional structure of the outermost layer is observed, a ratio of: a number of cubic boron nitride grains which have the binder phase having a width of 1nm or greater and 30nm or less, and containing Al, B and N between neighboring cubic boron nitride grains : to a total number of the cubic boron nitride grains , is 0.4 or greater, and a ratio of: a number of cubic boron nitride grains which have the binder phase having a width of 1nm or greater and 30nm or less, containing Al, B and N, and having an atomic ratio of an O content to an Al content of 0.1 or less between neighboring cubic boron nitride grains : to the number of cubic boron nitride grains which have the binder phase having a width of 1nm or greater and 30nm or less and containing Al, B and N between neighboring cubic boron nitride grains , is 0.5 or greater. <EOS>