家庭收支調查是每個國家最重要的統計調查工作之一，其主要目的在於：藉由蒐集家庭的收支狀況及其所得來源資料，以明瞭一般家庭實際的生活狀況，並加以分析，可提供政府做為擬訂政策之參考，因此，家庭收支調查統計可說是顯示民間經濟活動之重要統計。自此一調查工作實施以來，相關的改進研究就不斷地在進行，而隨著社會迅速的變遷，此一制度已存在著諸多問題，實有檢討、研擬改進措施之必要。 本文即是根據Kish所提出的滾進式樣本（Rolling Samples）的概念，建議將一年調查一次的訪問調查改為按月調查，以縮短調查資訊的涵蓋期間，這樣一來，不但可以取得較穩定且可靠的資訊，還可以顯示季節性的變化。本文利用民國八十六年臺北市的家庭收支調查資料來做分析，經過按月抽樣的程序後，發現：對推論總體平均而言，按月調查的確有其可行性。 / The Survey of Family Income and Expenditure is one of the most important statistical surveys in every country. The major purpose is to understand the actual life of common family. Thus, this survey is an important statistical work of social economic activity. Since this survey has been started, the related research is continued. While the society changes fast, there are many problems in this survey and we must improve it. This paper is according to the concept of Rolling Samples which is mentioned by Kish. We suggest making the interview-survey monthly. In this way, we can obtain more stable and more reliable information, and we can also obtain seasonal changes. This paper uses the data of the survey on Taipei in 1997 to analyze. We find that making the interview-survey monthly is usable.