Risk warning and managing system and method

A risk assessing and managing system for monitoring and managing one or more areas includes an obtaining module, a configuring module, a calculating module, and a managing module. The obtaining module obtains parameters of an area. The configuring module configures a weight coefficient and an evaluation class value to each of several monitoring terminals or sensors according to the parameters and influence proportion of each terminal. The calculating module calculates a weight value of each terminal according to the weight coefficients, and calculates a risk value of the area according to the weight values, the evaluation class values, and readings taken by the monitoring terminals. The managing module determines a risk class of the area according to the risk value and selects an improvement program to manage the area according to the risk class. A risk warning and managing method is also provided.