A wind turbine, comprising: a blade, and a hub, wherein the blade comprises multiple cross holes and multiple longitudinal holes (15a, 15b) for receiving cross bolts and longitudinal bolts (16a, 16b, 20a, 20b) respectively in its wall, wherein a plurality of longitudinal bolts (16a, 16b, 20a, 20b) is arranged in a plurality of ring-shaped rows each extending along the circumference of the blade, and wherein a plurality of longitudinal bolts (16a, 16b, 20a, 20b) is disposed within the blade wall in thickness direction, said thickness direction being a transverse direction of a section of the blade wall characterized in that the wind turbine comprises a pitch bearing for mounting the blade to the hub, said pitch bearing comprising an inner bearing ring and an outer bearing ring, wherein the blade is connected to the inner bearing ring or the outer bearing ring, the multiple cross holes and multiple longitudinal holes (15a, 15b) are disposed in a connection area where the blade is connected to the inner bearing ring or the outer bearing ring, the pitch bearing comprises a plurality of holes (18a, 18b) which are respectively communicated with the longitudinal holes (15a, 15b) of the blade for the insertion of the longitudinal bolts (16a, 16b, 20a, 20b), and the plurality of longitudinal bolts (16a, 16b, 20a, 20b), being disposed within the blade wall in thickness direction is mounted in one cross bolt, wherein cross bolts are disposed in the cross holes, wherein the cross bolts (13, 13a, 13b) each comprise at least one hole (14a, 14b) for receiving at least part (16aa, 16ba, 20aa, 20ba) of a longitudinal bolt (16a, 16b, 20a, 20b), and wherein the at least one hole (14a, 14b) of the cross bolt is a blind hole or a through hole. a blade, and a hub, wherein the blade comprises multiple cross holes and multiple longitudinal holes (15a, 15b) for receiving cross bolts and longitudinal bolts (16a, 16b, 20a, 20b) respectively in its wall, wherein a plurality of longitudinal bolts (16a, 16b, 20a, 20b) is arranged in a plurality of ring-shaped rows each extending along the circumference of the blade, and wherein a plurality of longitudinal bolts (16a, 16b, 20a, 20b) is disposed within the blade wall in thickness direction, said thickness direction being a transverse direction of a section of the blade wall characterized in that the wind turbine comprises a pitch bearing for mounting the blade to the hub, said pitch bearing comprising an inner bearing ring and an outer bearing ring, wherein the blade is connected to the inner bearing ring or the outer bearing ring, the multiple cross holes and multiple longitudinal holes (15a, 15b) are disposed in a connection area where the blade is connected to the inner bearing ring or the outer bearing ring, the pitch bearing comprises a plurality of holes (18a, 18b) which are respectively communicated with the longitudinal holes (15a, 15b) of the blade for the insertion of the longitudinal bolts (16a, 16b, 20a, 20b), and the plurality of longitudinal bolts (16a, 16b, 20a, 20b), being disposed within the blade wall in thickness direction is mounted in one cross bolt, wherein cross bolts are disposed in the cross holes, wherein the cross bolts (13, 13a, 13b) each comprise at least one hole (14a, 14b) for receiving at least part (16aa, 16ba, 20aa, 20ba) of a longitudinal bolt (16a, 16b, 20a, 20b), and wherein the at least one hole (14a, 14b) of the cross bolt is a blind hole or a through hole.