Since China began to carry out the policy of reform and opening-up, local governments have made some attracting policies for investment and introduced foreign investment and technology largely to accelerate the economic construction. The practice shows that these measures have obtained good effects. A main problem is the unbalanced development in different regions because of the significant difference in investment environment. So, putting forward the suitable measures, strengthening the attraction to foreign capitals by studying the regional investment environment has became a very important problem. This paper puts forward the corresponding countermeasures and suggestions by the objective analysis and evaluation of the inviting investment environment factors of the yang town in Beijing's Suburb.