Astronomy studies have been developed in Algeria since 1890 when the Algiers Observatory was built. Several instruments were soon installed on the site and have contributed to many scientific projects such as the international sky-map program. However, the observatory activities were suddenly interrupted by the departure of all French astronomers in 1962. Twenty years were needed before new astronomy programs were developed at Algiers observatory. They are principally based on imaging through atmospheric turbulence, solar physics and studies of pulsating variable stars. Only one observational program, however, has so far been developed. This consists of solar observations in the framework of an international program to survey the Sun’s radius. The astronomers now form a relatively important team since more than twelve researchers have permanent status. This is a good start taking into account the fact that astronomy is not taught in Algerian universities. We will begin first by giving an overview of the history of Algiers Observatory, including its instrumentation. We will then present the existing Algerian team and all their current scientific work and proposed projects.