Abstract: “Longza No.7” is a premature mechanized cultivation sorghum hybrid, which selected from Long 149A-Wai 4 with normal method by plant breeding institute of Heiliongjiang academy of agricultural science. This hybrid’s growing stage is 92d. Its accumulated temperature is 2150℃. Its plant height is 140cm. Its yield is 6098.5 kg/hm2. The hybrid is resistant to leaf disease and head smut. It was examined and approved by Heilongjiang crop variety examination committee in 2003.