Abstract: The invention provides a fan assembling structure and a heat dissipating device. The fan assembling structure comprises a first assembling board for assembling a fan thereon and a second assembling board connected to the first assembling board, the fan comprising a frame and blades disposed in the frame assembled to the first assembling board, the frame having an upper board, a lower board and a circular connector connected between the upper board and the lower board, the lower board including a first side edge, a second side edge, a third side edge and a fourth side edge in sequential connection.

Abstract: The disclosure provides a fan assembling structure and a fan device having the same. The fan comprises a frame having an upper board, a lower board and a circular connector, and blades disposed in the frame. The lower board comprises four side edges in sequential connection. A first fixing hole is at the first side edge, and a second fixing hole is at the upper board. The structure comprises an assembling board having a bottom plate and two parallel side plates. The bottom plate comprises a ventilating area. A through hole is defined at a first side of the ventilating area, and a hook is disposed on a second side of the ventilating area. And at least one protrusion extends inwardly from an inner side of at least one of the two parallel side plates, a guiding slot being formed between the protrusion and the bottom plate.