A cargo strap launching device is provided. A catapult frame is mounted on a trailer stake pocket bed rail. A lever arm has an upper and a lower end. The lower end is connected to the catapult frame. A coiled strap bucket is connected to the lever arm upper end. The bucket has a generally rectangular ejection opening so that the bucket is capable of retaining and then releasing a coiled cargo strap by pushing upwardly on the lever arm.