Abstract: DEB hydrogen getter has been prepared by mixing DEB(w=75%) and Pd/C (w=25%) catalyst and then grinding for 5 h. The hydrogen uptake capability has been characterized by PVT method. Raman spectrum was used to characterise DEB hydrogen getter before and after hydrogen uptake process. The results show that the hydrogen uptake capacity of DEB can attain 87.5% of the theoretical value. When the uptake capacity of DEB reaches 50% of the theoretical value, the residual hydrogen content in the argon can be also controlled to less than 10×10^-6. Raman spectra analysis indicates that the strength of stretch vibration of the carbon-carbon triple bond gradually becomes weaker as the hydrogen uptake proceeds.