It has always been on the layer of sensibility that people recognize the safety value,the paper gives a concise analysis on the foundation of it existing from the viewpoint of labor value and avail value theory.

Ushering into the SPV ( Special Purpose the Vehicle) and the risk insulate mechanism regarding the foundation property based on SPV make asset - backed securitization - a financial and creative tool have special safety value that traditional money raising means doesn t have, but inventors of asset - backed securities may still face to investment risk.

To evaluate the tour safety benefit, the concept of tourists safety value was firstly proposed.

In the light of the problemes for lack of paddy varieties with good quality in China's rice milling industry and cereal ageing in storage, several key techniques urgently needed for improving the edible quality of aged rice and developing the complete rice, as well as the new products developed at present were put forward in order to improve the economic benefits of the enterprise.