This study was carried out in co-operation between the Faculty of Agriculture, DamascusUniversity and the General Commission for Scientific Agricultural Research (GCSAR) in Jelleen Research Station during the two growing seasons of 2009 and 2010. In first year, eight local cultivars (male parents) were crossed with two exotic sterile lines (female parents) using (line×tester) method. In second year, the hybrids were grown along with their parents in a randomized complete block design (RCBD) with three replications to estimate general combining ability (GCA), specific combining ability (SCA) and both mid and high parent heterosis for panicle length, net percentage, 1000-grain weight and grain yield traits. The results showed that some parents had significant positive general combining ability for grain yield such as; (Baladi-1, Baladi-4, Ezraa-7). Many hybrids showed significant positive specific combining ability, having both mid and high parent heterosis, derived from parents which have  significant positive general combining such as; (Baladi-1×SPL-10A, Baladi-4×SPL-10A and Ezraa-7×SPL-10A). The results showed the possibility of continuing selection procedure in subsequent generations to obtain distinct high yielding sorghum lines.