The space testbeds have been a milestone in space missions. The development of laboratory testbeds capable of testing space missions has led to increased reliability and performance of space systems during their missions. This article presents a review study on space testbeds, with a particular focus on rendezvous and docking laboratory testbeds. In this study, the testbeds have been categorized into two-dimensional and three-dimensional platforms. The table-based frictionless platforms, robotic simulation platforms, and the combination of a table and a rail structure are categorized under the two-dimensional platforms. The three-dimensional category also includes robotic arm-based platforms, water pools, free gravity or micro gravity environments, rail in a three-dimensional environment, and unmanned aerial vehicles. Considering the importance of developing and implementing laboratory testbeds for space missions and rendezvous and docking, at the end, the article has introduced the testbeds based on categorization. It also provides examples of existing laboratories, as well as samples of active institutions and centers in this field.