A shoe includes an outsole and an upper. The outsole has a base wall, and a surrounding wall extending upwardly and integrally from a periphery of the base wall and cooperating with the same to define a receiving space. The surrounding wall has a guide groove surrounding the receiving space. The upper is fixedly connected to the outsole by a seam that is received in and that extends around the guide groove. A foot arch correction device is disposed in the receiving space in a non-protruding manner and has a stepping portion located on top of the base wall, and a protective portion extending upwardly and outwardly from a periphery of the stepping portion and surrounded by the surrounding wall.一種可穩定安裝足弓矯正器的鞋子及其鞋大底，該鞋子包含該鞋大底、一個與該鞋大底結合並共同界定出一個穿戴空間的鞋幫，以及一個安裝在該穿戴空間內的足弓矯正器，該足弓矯正器具有一個踩踏部，以及一個由該踩踏部突出並護持人體足部的護持部，該鞋大底具有一個位於該踩踏部下方的基底部，以及一個由該基底部突出並圍繞該護持部的圍壁部，該圍壁部及該基底部共同界定出一個讓該足弓矯正器不突出組裝的包覆室。利用該鞋大底之該圍壁部來護持該足弓矯正器，可以穩定的包覆該足弓矯正器，避免該足弓矯正器在使用過程偏斜、移位，以提高矯正的正確性，同時讓身體的骨骼及經絡維持在健康的位置。
