This investigation was carried out during 1999/2000 and 2000/2001 at Barramoon Experimental Farm, Dakahlia Governorate, to study the effect of organic manure combined with biofertilizers on growth, fruit yield and essential oil content of Caraway plants. Cattle manure at three rates 6 m³, 9 m³ and 12 m³ were added during the soil preparation, while biofertilizer (mixture of 1 kg/fed Nitrobein + 1 kg/fed phosphorein) was mixed with caraway seeds before sowing immediately. Cattle manure at all rates and biofertilizer increased significantly plant growth, fruit yield and oil content. The highest values were observed at 12 m³ cattle manure application. The superiority in growth, fruit yield and essential oil content were with combination between cattle manure 9 m³ and biofertilizer. Also, it was noted that cattle manure at all rates individually or combined with biofertilizer produced increases of oil content and carvone percentages as well as total main components (Limonene and Cacrvone) of essential oil. The best results were recorded at 9 m³ cattle manure plus biofertilizer.                 In general, organic manure and biofertilizer caused production enhancement of plants without undesirable impact on environment.