The invention relates to an axial connection assembly which comprises a tubular member, a first axial member and a first thread member. The tubular member comprises a first protruding portion, a first flange and a first tubular member matching portion, wherein the first protruding portion axially protrudes out of the first end, the first flange is arranged on the outer circumferential face of the first protruding portion, and the first tubular member matching portion is arranged at the first end. The first axial member comprises a first axial member body and a first axial member matching portion, wherein the first axial member body is matched with the first tubular member matching portion to transmit torque. A first concave portion for receiving the first protruding portion and a first axial member external thread portion are arranged on the first axial member body. The first thread member is provided with a first internal thread portion connected with the first axial member external thread portion and is constructed to be capable of limiting the tubular member and the first axial member from being disengaged in the axial direction through the mutual effect of the first thread member and the first flange of the tubular member. The invention further relates to a linkage device and an aircraft, wherein the linkage device comprises the axial connection device and is used for the aircraft, and the aircraft comprises the linkage device.