Abstract: The present application provides a powder sample adding device and a powder sample adding system. The powder sample adding device includes a first bracket and a sample adding mechanism. The first bracket includes a powder adding substrate and a powder bucket carrying member, the powder adding substrate is connected to the powder bucket carrying member. The sample adding mechanism is connected to the powder adding substrate. The sample adding mechanism includes a powder adding member, a stirring driving member, and a pressing-down driving member. The stirring driving member is connected to the powder adding member in a transmission way and configured to drive the powder adding member to rotate. The pressing-down driving member is rotatably connected to the powder adding member and configured to drive the powder adding member to rise and fall relative to the powder adding substrate.