A channel diversion device includes a supporting structure, a piercing hole structure, a guiding baffle and a collecting mask. An electronic component can be accommodated inside the supporting structure. The supporting structure includes a first structural layer and a second structural layer. An opening is formed on the second structural layer. The piercing structure is formed on a lateral wall of the first structural layer, and the guiding baffle is disposed by a side of the opening on the second structural layer. The collecting mask is disposed by the first structural layer to cover the piercing hole structure, and a direction of an outlet of the collecting mask is substantially different from a direction of the opening on the second structural layer.