Based on expatiated the basic structure model and some general improved algorithms of BP neural network, this paper brings forward a new self-organization learning algorithm.

Then, the communication model for MARS is deeply studied, the MARS fitted model of high layer communication and topology structure of under layer network are provided.

A model and general structure of network system for forecasting landslide (HPNN) are proposed, The work principle is described by means of a practical application example.