A simple analysis and measurements are presented, which show that adiabetic premixed Laminar flames can be stabelized on aflat flame burner, especially designed for this purpose. The physical properties of these flames are identical to those of flat freely propagating flames. The adiabatic state can be accomplished in practice when the burner plate temperature is well obove the temperature of the unburnt mixture. The net heat loss of the flame to the burner is zero(i.e. the flame is adiabatic) when the measured radial temperature profil of the burner plate is uniform. These flames are particulary suitable for comparison with theoretical or numerical flat flame studies.