This study reports on the preparation and usage of modified carbon paste electrode (MCPE) by ionic liquid (IL), 1-butyl-3-methylimidazolium tetrafluoborate (BMIMBF4). An attempt on using such modified electrodes for determination of cadmium in different electrolytes by mean of differential pulse anodic stripping voltammetry was conducted. Ratios of graphite powder/paraffin oil/1L for preparation of MCPE were investigated and the most suitable ratio used for preparation of MCPE was 80/5/15 in weight. With this ratio the highest signal of 15.24 uA obtained from 60 ppb of cadmium ion in study solution. In comparison with conventional carbon paste electrode, the MCPE provided stripping current at two times larger. The well-defined reduction peak of cadmium was observed at 0.7 V vs Ag/AgCl in phosphate buffer solution 0.1 M, pH 4 with the 240s deposition time. The study indicated a possibility of application of studied modified electrode for determination the trace concentration of cadmium in water.