A switchable odor emitting device includes a plurality of odor storage units and a switch control unit. Each of the odor storage units includes a container body and an odor drive member. The odor drive member is disposed on the container body. And an instruction part, the instruction part signal is connected to the signal receiving part and the odor driving component, and an odor instruction signal is received at the signal receiving part. The instruction part controls the corresponding odor driving component to start and control the non-corresponding odor driving component according to the odor instruction signal stop. With the switchable scent emitting device of the present invention, it is possible to freely switch the scent of multiple odors as required, with high selectivity, and it is possible to control the concentration of the scent and extend the duration of the scent.一種可切換之氣味散發裝置，其包含：複數氣味儲存單元以及一切換控制單元，氣味儲存單元各自包括一容器本體及一氣味驅動構件，氣味驅動構件設置於容器本體，切換控制單元包括一訊號接收部及一指示部，指示部訊號連接訊號接收部及氣味驅動構件，於訊號接收部接收到一氣味指示訊號，指示部依據氣味指示訊號控制對應的氣味驅動構件啟動並控制非對應的氣味驅動構件停止。藉由本發明的可切換之氣味散發裝置，可依據需要自由切換多種氣味的散發，選擇性高，並且可控制所散發氣味的濃度並延長氣味持續期限。
