中文摘要：

住房保障在民生问题中越来越突出，也成为人们越来越关注的一个问题。文章借鉴穆怀中教授的社会保障适度适度水平的测算模型，构造一个住房保障适度水平测算模型。并借鉴发达国家住房保障经验数据对各模型系数进行估计，结合具体情况得出广东省住房保障适度水平区间为0．83％-2．21％。而广东省住房保障水平仅为0．2％，远未达到适度水平下限，政府对住房保障的投入力度远远不够。随着经济水平的不断发展，广东省需要不断加大对中低收入群体的住房保障力度，提高住房保障水平。

英文摘要：

Housing security problem is becoming more and more serious in livelihood issues and is drawingmore and more attention from common people. By referring to the existing measurement model of appropriate level of social security, the writers of the present paper construct a measurement model at appropriate level of housing security. Then the model coefficients are estimated based upon the relevant empirical data of the developedcountries. The moderate ratio between housing security expense and the GDP should be from 0.83% to 2.21%,consideringparticular situation of Guangdong. But the calculation shows the present real level of housing security in Guangdong is only 0.2% , which is far from the moderate level floor. The investments in housing security from the government are still far from enough. With the continuous development of economy, the provincialgovernment should continue its increase of the housing safeguard dynamics of the low - and lowest - incomepeople and enhance further the housing security level.