Epoxy-Al2O3 composites is the main material of HVDC GIL insulator, whose space charge characteristics are closely related to the safety of device. In production, semiconducting electrodes are respectively coated on the surface of the high voltage rod and grounding inserts to increase the bonding strength between the metal and the insulator. This paper studies the effect of semiconducting electrode on the space charge behavior of EA composites. In this paper, the EA composites for GIL insulator are firstly prepared. The epoxy-based semiconducting electrode (ER) and chloroprene rubber-based semiconducting electrode (CR) are coated on one side of the EA-1 and EA-2 samples, and then sputtering silver electrode (Ag). And Ag is the cathode and anode of EA-0. The space charge characteristics in each samples are measured by pulsed electroacoustic method under different polarity electric fields at 25 °C, 40 °C 60 °C and 80 °C. The results show that the number of electrons and holes injected from the ER and CR is similar, and the distribution of space charge seems to be less affected by the semiconducting electrode at low temperature. But the effect of ER and CR on charge distribution is obviously different at high temperature, and ER has better performance than CR in controlling charge injection.