A programmable controlled heat dissipating fan is comprised of a base, a stator assembly, a magnet frame assembly, a fan blade assembly, an inductor set, a first circuit board and a second circuit board. The stator assembly is firmly installed in the base, while the magnet assembly is sleeved into the periphery of the stator assembly. The fan blade assembly is rotated through the alternatively changing magnetic field produced by the stator winding and magnet frame, while the second circuit board is rotated and powered by electromagnetic coupling. The data content stored in the data repository is loaded by the microprocessor to drive the light emitting unit to display.