The geometric topology of electrodes has been reported to have much impact on the current spreading and subsequent optoelectronic characteristics.And the current crowding phenomenon can be greatly relieved by optimizing the electrode pattern. In this paper, the current distribution models featuring top-emitting LED and flip-chip LED were discussed. The effect of different electrode patterns on the performance of current spreading was further investigated through the simulation with commercial SimuLED software. The simulation results showed that the current spreading capability of the top-emitting LED with fingerlike electrode pattern was greatly increased, which also enhanced the current distribution and luminous efficiency by inserting current blocking layer under the electrode. The current spreading capability of flip-chip LED was enhanced by the via-hole based double layer electrode structure, which enabled the uniform distribution of n-type electrode on the entire chip range.