This paper focuses on the theory and practice of the accident-causing model and risk assessment for chemical accidental water pollution busted in area nearby waters, analyzes and improves the deficiency of the safety and environmental access system for chemical investment projects in area nearby waters, and therefore has certain practical meaning.

In this paper, based on the model of accident phenomenon attributes to personal factors, the relationship between personal factors and accidents is discussed, the effect on the perception of the potential hazards made by different personal factors and the safety level of the work behaviors determined by the effect are analyzed in the condition that potential hazards exist.

The principle of inherent safety was quoted simply and accident cause occurred was discussed in this article.

The estimating indicator system of the civil aviation accident cause,which bases on the HFACS model is established.

Research on traffic accident causation also rest on traditional statistical method phases, in despite for ages.

Based on the accident-causing theory and the analysis of the current situation of coal mine safety in our country,an coal mine accident causation model fitting for reality is established.

Based on accident causation factors,different definitions and classification ways for hazard at abroad are summarized,such as hazard of energy unit,two categories of hazards and three categories of hazards.