Since cultivation of bell peppers require very humid soil, it is of utmost importance to regulate and reduce the loss of moisture during the cultivation period by using various types of mulch. The aim of the research was to determine the soil moisture regime during the growing period while using various types of mulch (organic - sheep and felt wool, black PEfilm and unmulched plots as control plots). The soil sampling for analysis of moisture dynamics was carried out every ten days. The samples were taken at depth of 0 – 10 cm and 10 – 20 cm. Analysis of variance of all soil moisture measurements showed that average soil moisture was significantly influenced by days after the planting of the bell pepper plants and the type of mulch. Upon the analysis of the average soil moisture under various types of mulch, it was determined that there were considerable statistic differences between sheep and felt wool in comparison with PE-film and unmulched soil plots. During the growing period, the highest moisture level was retained in the soil covered with organic wool mulch. With regard to the results of the research, it is reasonable to recommend using these types of mulch as an alternative to conventional use of polymers such as PE-film.