Abstract:According to the characteristic of the GB-SAR affected by many factors and complex relationship in the open pit mine slope ground disaster monitoring, it used genetic algorithm optimized BP neural network model to analyze the monitoring effectiveness of the GB-SAR. The neural network takes the scan gradient, scan slope direction and the radar echo intensity as the input, takes the obtained points number of deformation monitoring as the output, and uses the Pearson correlation coefficient method to analyze the relevant properties and related degree of the influence factors. The results show that the GA-BP algorithm is suitable for monitoring effectiveness analysis of GB-SAR, and it is effective and superior.