Rendezvous and docking between spacecrafts are key operation for many space missions. It is necessary to perform groundbased experiment before space missions. In this paper, based on the model of twodimensional rendezvous and docking, a guidance method using the idea of potential function was presented. A quasirectangle obstacle constraint described by superquadratic curves and a safety docking area constraint of the target spacecraft with heartshaped curve were considered. Then, a groundbased experiment system was built, and two simulators and an electromagnetic docking mechanism were developed. The experimental results showed the feasibility of the experimental system and the effectiveness of the guidance method.