  We investigate the laser-assisted single XUV photon double ionization of
ground state helium. By solving full six-dimensional time-dependent
schr{\"o}dinger equation, we study the correlation and angular distribution.
The discussion in joint energy and angular distributions reveals the
competition in odd and even parity double ionization processes in the presence
of weak laser field. The emission angle between two photoelectrons can be
adjusted by the laser parameters. We depicts how the laser field enhance and/or
enable the back-to-back and side-by-side emission of double ionization.
