Marine equipment generally lacks efficient power supply methods. The high energy density of wave energy can facilitate the converter miniaturization and make them easily integrated into marine equipment. This paper presents a novel point energy absorber-type wave energy converter, which is based on the counter-rotating self-adaptable movement mechanism. Comprehensive theoretical analysis, numerical optimization and verification experiments were conducted on its performance characteristics. It was found that the hydrodynamic performances of the WEC are greatly affected by the rotational speed and diameter, and the interaction between the double absorbers is exacerbated by the stabilizing fins.