The bilirubin adsorption properties of three different types of carbon nanotubes (MW, LMW and SW) were studied. X?Ray Diffractomer (XRD) spectra shows that the diameters of the three carbon nanotubes are ranked as LMW>MW>SW. Scanning Electron Microscopy (SEM) and Brunner Emmet Teller (BET) show that MW has the best dispersion, a larger specific surface area, the largest pore size and a maximum pore volume. The bilirubin adsorption results show that the carbon nanotubes have the maximum bilirubin adsorption capacity when the temperature is set as 37^{℃ and the adsorption time reach 40 min. When the concentration of bilirubin is higher than 0.5 g/L, the bilirubin adsorption capacity of MW carbon nanotubes is the largest, and the maximum adsorption capacity of bilirubin reach 208 mg/g membrane. With increasing ion strength, albumin mass concentration, and under alkaline conditions, increasing pH does not benefit the absorption of bilirubin in the buffer solution. Compared with the conventional adsorbents, all the three carbon nanotubes show the excellent performance of short adsorption time and large adsorption capacity for bilirubin, which provide the experimental basis for the preparation of polymer microfiltration membranes blending with carbon nanotubes and its adsorption of bilirubin.}