Large‐size high‐resolution floating 3D light‐field display in air remains a challenge. Here, touchable floating 3D image light‐field displays in the air are demonstrated. A novel catadioptric retroreflector (CR) floating device in the floating3D light‐field system is proposed. The floating 3D light‐field image constructed is aberration‐suppressed. The luminance and the contrast of the image are substantially improved in a 90‐degree viewing angle. A spectrophotometer is utilized to measure the retroreflective efficiency of the CR device. The average retroreflective efficiency is 80.1%. A beam quality analyzer is utilized to measure the beam spot quality, and the image quality can satisfy the requirements of human eye observation. A telecentric retroreflector (TCRR) is proposed to suppress non‐retroreflected light without sacrificing the viewing angle. A contrast transfer function is used to evaluate the optical performance of the TCRR. To improve the 3D image source, the relationship between the root mean square of the voxels and the 3D image quality is discussed, and an aspheric lens array is designed to reduce aberrations. The peak signal‐to‐noise ratio of the floating 3D image increases from the original 15 dB to 30 dB. A clear floating high definition 3D image with a floating distance of 60 cm and a viewing angle of 70° is achieved.