To provide a landing gear storage compartment of an aircraft which can protect accessories installed around a landing gear by blocking jet blast and dust etc. while suppressing the weight and the cost. A landing gear storage compartment 3 of an aircraft 1 includes: a storage bay 31 that stores a landing gear 2 for use in takeoff and landing; and a shielding wall 32, inside of which a wheel assembly 21 of the landing gear 2 stored in the storage bay 31 is arranged, and whose lower side, through which the wheel assembly enters and exits, and whose upper side are opened. An upper opening 32C of the shielding wall 32 is covered with a partition wall 13 that separates a cabin 12 located above the storage bay 31, and the storage bay 31.
