The factors which influence safety of grain storage in our country were analyzed from producing to consumption through resources,policy,technique,etc.

In Qing Dynasty,the average per person grain reserves of Huaiqing Prefecture was slightly higher than the national and Henan Province s average level.

General steps of blur judge were studied in this article,an evaluation system of science & technology content for grain storage enterprises is also designed;this system can scientifically estimate the science & technology content and provide support of decision for scientifical grain storage.

China should start with making "the law of food security guarantee "perfecting the system of grain reserves,practising policies of supporting agriculture,developing effective a.