Wittig reactions of a pool of stabilized ylides, including EtO2CCH:PPh3 and MeCOCH:PPh3, and aromatic aldehydes, including 4-MeOC6H4CHO and 3-pyridinecarboxaldehyde, were carried out in a microwave oven. Only a few minutes were needed for high conversion under microwave heating in comparison to hours with traditional methods.