Two field experiments were conducted during 2003! 2004 and 2004! 2005 seasons at the Agricultural Exprimental Station of the National Research Center at Shalakan, Kalubia Governorate and seed technology unite, Mansoura, Egypt. The objective of this investigation was to study the effect of some weed control treatments(unweeded, two hand hoeing, Prometryn at 1.250Ufed, Metribuzin at 250 gifed, Bentazon at 0.750L/fed, Fluazifop-butyl at 1L {fed and Bentazon+Fluazifop- butyl) on growth,yield,yield attributes and some seed technology of faba bean plants. Fresh and dry weight of faba bean weeds were significantly decreased by different weed control treatments as compared to the unweeded check. The most effective treatments in decreasing fresh and dry weight of broad- leaved. Weeds were: two hand hoeing, Bentazon, Bentazon + Fluazifop-butyl and prometryn. While, Fluazifop-butyl, Metribuzin, Prometryn and Bentazon+ Fluazifop— butyl successively were the most treatments in decreasing fresh and dry weight of grass weeds. Also, the highest decrease in fresh and dry weight of total weeds were obtained by two hand hoeing, followed by that of Bentazon+ fluazifop— butyl treatment. Two hand hoeing, followed by Bentazon+ Fluazifop-butyl and prometryn recorded the tallest plant height and produced the highest values of branches number of plant, No.of leavesfplant, fresh weight of plant, dry weight of plant, weight of pods! plant, pod length, No. of seed! pod, weight of seeds/ plant, too-seed weight and seed yield ton! fed as well as protein “it: and carbohydrates percentage in faba bean seeds. While, hand hoeing and Bentazon successively were the most treatments in increasing root length and seedling dry weight. Also, the highest increasing in germination speed were obtained by Metribuzin and two hand hoeing treatments.