The invention discloses a material intelligent screening 
system which comprises a screening 
machine, fed material, oversize product and undersize product automatic taking systems, fed material, oversize product and undersize product particle size and weight intelligent analysis systems, a 
screening effect online intelligent analysis 
system and an intelligent dynamic regulation and 
control system.The fed material, oversize product and undersize product automatic taking devices automatically take fed materials, oversize products and undersize products in the screening process, the fed material,oversize product and undersize product particle size and weight intelligent analysis systems analyze particle size compositions of the fed materials, the oversize products and the undersize products,corresponding data are imported into the 
screening effect online intelligent analysis 
system, 
screening effect evaluation indexes are calculated and displayed on line and then fed back to the intelligent dynamic regulation and 
control system to carry out screening 
machine technological parameter self-adaptive dynamic regulation and control, and therefore efficient screening of materials is achieved. The system has the advantages of being high in intelligent degree, high in 
visualization level, high in working condition adaptability, large in 
processing capacity, low in 
failure rate, good in screening effect and the like.