Growth and development characteristics and yield formation of the rice of precision hill-drop drilling were studied comparing with manual spreading,manual transplanting.Results showed that precision hill-drop drilling shortened the total growing period of rice,improved individual and the biological production area index,and reduced the total leaf age of the main stem.The tiller of precision hill-drop drilling was strong and powerful,low-leaf tiller,tiller occurred early and the peak of tillering appeared early,and the total tiller per unit area increased as well.Effective rice panicle of precision hill-drop drilling was 263.63 panicles per m2,increased by 24.63% and 15.25% more than manual spreading and transplanting,and its actual yield was 14.92% and 4.59% higher than manual spreading and transplanting,respectively.