A measuring device, including a device body, a plurality of distance measuring units, a plurality of optical measuring units and a processing unit, is provided. The device body includes a sensing plane adapted for a person to be measured to stand on. The distance between the center of the sensing plane and each of the distance measuring units are equal, and the distance between each of the distance measuring units are equal. The optical measuring unit are disposed corresponding to each of the distance measuring units. Each of the distance measuring units transmits a plurality of distance measuring signals to a plurality of body areas of the person, to derive distance information between each of the distance measuring units and the body areas of the person. Each of the optical measuring signal transmits measuring light to the person, and receives a measuring pattern formed by the measuring light reflected by the person. The processing unit calculates and reconstructs a three-dimensional surface structure of the body areas of the person according to each of the distance information derived from each of the distance measuring units and each of the measuring pattern corresponding to each of the distance measuring units.一種人體量測裝置包括裝置本體、多個測距單元、多個光學量測單元以及處理單元。裝置本體包括適於使待測人站立於上的感測基準面。各測距單元與感測基準面的中心的距離相等，以及各測距單元之間的距離相等。光學量測單元對應各測距單元設置。各測距單元發射多個測距信號至待測人之多個身體區域，以取得各測距單元與待測人的身體區域的距離資訊。各光學量測單元發射量測光至待測人，並接收量測光從待測人反射形成的量測圖案。處理單元根據各測距單元取得各距離資訊以及對應的各量測圖案計算並重建對應於待測人的身體區域的三維表面結構。
