The qualitative analysis on the basis of policy, experience prediction on the basis of the former investigation of environment protection industry and the prediction of the second smooth index are used to predict the total investment of environment protection and the technology equipment market capacity in the next five years.

Analyzing the environmental protection investment from highway project;

Focusing on the confusion about investment on environmental protection industry and on environmental protection by domestic academic societies and governments, this paper clearly defines the two terms: environmental protection investment and environmental protection industrial investment.

Increasing Law And Proving It's Theory On The Environmental Investment;

According to the different environmental goals and population of different units, this paper puts forward the relative planning results (including wastewater treatment design, management policies and environmental investment).

In this paper, we use "the preferred growth model of environmental investment" to analyze the running efficiency of environmental investment, and find that it is very low.

Through the investigation and study about the investment in environmental protection in highway s construction projects in some provinces and cities and analyses about the main body,the source and the structure of scale and usage of the investment,the paper puts forward some reference for the policy-making administration of the investment.

Due to problems in environmental protection investment and financing mechanism(EPIFM),China faces insufficient and inefficient investment in EP.