A chip-based electrostatic beam splitter composed of six gold electrodes is proposed.Total length of the splitter is about 10 mm.Dynamic process of the loading and splitting polar molecules is simulated with classical Monte Carlo method.With the beam splitter, we can get a fix splitting ratio (0.5:0.5).If cutting off two pole electrodes, we can manipulate the splitting ratio conveniently with the voltage applied to the severed electrodes.
