In the Republic of Croatia plum tree and apple tree represents most importnant fruit cultures. Researches that include those cultures and all other cultures are very importnaint becouse we must determinate situation and include needed procedures to insure economically justified results. This research include survey about soil moisture regime and soil rain water balance. It was made on experimental table of Agronomy faculty University of Zagreb threw vegetation season from april to september of 2016. in orchard of plum and apple trees. Sampling was conducted on 0-20 cm depth of soil and 20-40 cm. Soil moisture was defined by gravimetric method. Complete state was determinated by using relevant meteorological data and some importnaint fizical and chemical characteristics were determinated in laboratory of Faculty. Results said that soil moisture content in plum tree cultivation and apple tree cultivation did not decrese under value of the point of wilting on neather depth of soil so cultures did not went in water stres periods. Estimate of soil rain water balance showed deficit of water threw 2016. for both cultures and it was expressed in summer months. For plum tree the value was 56,5 mm and for apple tree was 66,9 mm. Recived data were compared whit statistic tests which showed that difference between plum and apple tree were not significant considering all climat and soil conditions.