The present work aimed to increase the safety of anticoagulant rodenticide Bromadiolone 0.005% by using potassium tartrate( PT) 8% in order to produce naval and safety rodenticide at a lower cost. The current results revealed that the addition of PT slightly increased the acceptability of bromadiolone bait Complete killing or 100% death of survival rats has occurred after free choice application. Acceptability and per cent mortality was 1.8 time than bromadiolone alone. This chemical poison present decreased the length of the time that poison act. that bromadiolone alone in free-choice test rats take two months of treatment to reach 100%mortality per cent while in case of adding PT rats take one month of treatment.