  Galactic microquasars are certainly one of the most recent additions to the
field of high energy astrophysics and have attracted increasing interest over
the last decade. However, the high energy part of the spectrum of microquasars
is the most poorly known, mainly due the lack of sensitive instrumentation in
the past. Microquasars are now primary targets for all of the observatories
working in the X-ray and gamma-ray domains. They also appear as the possible
counterparts for some of the unidentified sources of high-energy gamma-rays
detected by the experiment EGRET on board the satellite COMPTON-GRO. This paper
provides a general review of the main observational results obtained up to now
as well as a summary of the scenarios for production of high-energy gamma-rays
at the present moment.
