A clamping device adapted to clamp an object and including a base, a cover and two elastic components is provided. The cover is pivoted to the base. The two elastic components are disposed at two opposite sides of the base respectively, wherein two ends of each of the elastic components are connected to the base and the cover respectively. The cover is adapted to resist elastic force of the two elastic components to be expanded from the base, such that the object is able to be clamped between the base and the cover.一種夾持裝置,適於夾持一物件且包括一座體、一蓋體及二彈性件。蓋體樞接於座體。二彈性件分別配置於座體的相對二側,其中各彈性件的二端分別連接於座體及蓋體。蓋體適於抵抗二彈性件的彈性力而展開於座體,以使物件能夠被夾持於座體與蓋體之間。100‧‧‧夾持裝置110‧‧‧座體112‧‧‧轉軸114‧‧‧罩體116‧‧‧凸柱120‧‧‧蓋體122‧‧‧滑槽130‧‧‧彈性件140‧‧‧電池150‧‧‧感測元件N1、N2‧‧‧凹陷