To provide a floor cushion which is less likely to slip in any direction of a front surface cover or a rear surface cover, in which a filler is not biased even without stitching the front surface cover and the rear surface cover together and providing an inner partition, and which uses a rush straw mat the seat part of which is permeable, to provide a method of manufacturing the same, to provide a floor cushion which uses a rush straw mat which has so unconventional appearance that an effect of stimulating the purchase feeling of a consumer is expected with design, and to provide a method of manufacturing the same.

In the floor cushion Z, the sheet part 1 is formed by weaving cover constituting bodies 10a to 10d and cover constituting bodies 11a to 11d vertically and horizontally to be orthogonal to each other so as to form permeable parts 4 at the four corners of overlapped parts. Furthermore, a fabric hem 2 is provided at the edge of the seat part 1. Each cover constituting body is formed by folding a a straw mat of a necessary width woven so that the direction of rush face a direction of the length so as to make a folding line in the direction of the length and filling inside with a filler 3.