Chinese railway construction project is an important part of the implementation of the “Belt and Road” strategy, and the risk evaluation of overseas railway construction is the primary link of the project. Firstly, this paper mainly analyzes the Asian and European countries along the railway construction project, establishes a railway construction project risk evaluation system, and synthesizes various risk factors. Secondly, it establishes two independent BP neural network models by using different training algorithms because of the different political, economic, and cultural elements between the two continents.

The environmental protection target responsibility system and the appraisal system is a major measure in our country’s environmental protection system. The existing ecological environmental assessment forms are diverse, various, but lack of overall planning, ecological environment quality guidance is not prominent. There are problems such as immature evaluation mechanism and incomplete design of indicator design system. This research system evaluates the assessment system in the existing environmental protection system, accelerates the overall integration, takes the environmental performance as the basic direction, takes the environmental quality goal improvement as the main line, formulates and implements a set of environmental quality target assessment index system with scientific, incentive, pertinence and maneuverability, conforms to the national conditions of our country, scientifically evaluates the effect of environmental management, and realizes the index management of environmental protection.