A layered-wall modular flowerpot (1) and a manufacturing method therefor. The flowerpot comprises a framework (2), a cover layer (3) covering a barrel-shaped surface of the framework (2), a base (7), and an upper engaging sleeve (6). A water storage cavity (4) is formed between an inner surface layer (32) and an outer surface layer (33) of the barrel-shaped surface cover layer (3). Water seepage holes (31) are spread all over the inner surface layer (32) and are used for adsorbing and releasing water. The manufacturing method for the modular flowerpot (1) is such that the framework (2) and the cover layer (3) covering the barrel-shaped surface of the framework (2) are manufactured first, the water seepage holes (31) are punched on the surface cover layer (3), the framework (2) is covered with the surface cover layer (3) to form the flowerpot inner surface layer (32), the outer surface layer (33), and the water storage cavity (4), a water absorbent material (5) is loaded, the upper part of the flowerpot (1) is fixed with the engaging sleeve (6), and the lower part of the flowerpot (1) is mounted into the base (7). Because the water storage cavity (4) is fitted with the water absorbent material (5), soil in the flowerpot (1) is continually replenished with water, and moisture retention time of the soil in the flowerpot (1) is extended, thus adapting to placement of potted flowers/plants in an area without water supply. The manufacturing method for the flowerpot (1) is easy and convenient, while storage and placement after use are facilitated. Components such as a covering material are replaceable, thus reducing costs for placing potted flowers/plants.Linvention concerne un pot de fleur modulaire à paroi multicouche (1) et son procédé de fabrication. Le pot de fleur comporte un cadre (2), une couche de revêtement (3) recouvrant une surface en forme de tonneau du cadre (2), une base (7) et un manchon de mise en prise supérieur (6). Une cavité de stockage deau (4) est fo