The broad objectives of this study were to investigate the impact of water harvesting techniques on trees growth and soil moisture content. Field experiments were conducted for one rainy season (2010) around west Omdurman, Jebel Aulia Locality in Khartoum New International Air Port, 40 km south of Khartoum city and 25 km west of the White Nile River in south west direction. The study site lies in the semi - desert region. The experimental design followed was the randomized block design. The water harvesting techniques used were strips, semi-circles, pits and control. The tree species grown were Acaia tortilis subsp raddiana, Acacia senegal and Zizphus spina- christi. The three tree species were planted by using seedlings. The shoot length, number of leaves and diameter of stem of seedlings of the three tree species were measured every three weeks after transplanting, during the rainy seasons. Soil moisture content was measured three times during the rainy seasons (beginning, middle and end).the soil samples taken from three different depths: 0-30cm, 30-60cm and 60-90cm.