  This paper presents the analysis of Doppler p-mode observations of the G2V
star $\alpha$ Cen A obtained with the spectrograph CORALIE in May 2001.
Thirteen nights of observations have made it possible to collect 1850 radial
velocity measurements with a standard deviation of about 1.5 m s$^{-1}$.
Twenty-eight oscillation modes have been identified in the power spectrum
between 1.8 and 2.9 mHz with amplitudes in the range 12 to 44 cm s$^{-1}$. The
average large and small spacing are respectively equal to 105.5 and 5.6
$\mu$Hz. A comparison with stellar models of $\alpha$ Cen A is presented.
