In developing the west,the main task is to develop economic core zones.By examinimg the 10 economic core zones,the author has found many problems.These problems are as follows: these core zones do not have great economic sbrength,they are far from oceans and lack local funds.However,they are rich in resources,have relatively good natural conditions,development conditions,abundant labour forces and a large number of scientific and technological talents.Therefore,the departments concerned should strengthen the construction of infrastructure,tap the resources around the economic core zones,amass population in these zones,formulate policies to give priority to developing these zones,improve the investment environments,attract businesses and investment and develop industrial systems with the characteristics of transportation-and -thrift-type industries.