| An aluminum vapor chamber device includes a first plate body, a second plate body, side walls and support bars. The second plate body is located above the first plate body. The side walls are connected to the first plate body and the second plate body, and an internal space is surrounded by the first plate body, the second plate body and the side walls. The support bars are arranged side by side in the internal space along a first direction, extend along a second direction, and connect the first plate body and the second plate body to divide the internal space into channels. Each of the support bars include first holes to communicate with the channels. The first plate body includes first grooves located in the channels and extending along the second direction. The second plate body includes second grooves located in the channels and extending along the second direction. |