As a promising alternative to mitigate the emission of CO2, cryogenic CO2 capture techniques have been paid increasing attention. In our previous works, a novel deposition CO2 capture process based on free piston Stirling coolers (FPSCs) has been developed. Compared to conventional cryogenic CO2 capture approaches, FPSC was selected to provide cold energy for CO2 deposition because of its significant advantages (such as high efficiency, high reliability, small size, environmental friendliness, etc.). The performance of the exploited system has been verified by numerical models. The aim of this work is to experimentally test the CO2 capture performance of the system. In detail, the influence of the temperature of FPSC and flow rate of the gas stream was investigated. Finally, a brief comparison of the dominant technologies was undertaken. Experimental results showed that the system can capture 95% CO2 from the simulated flue gas and consume 0.55 MJ electrical energy per kilogram of CO2 recovered.