This paper, based on the relevant theory of developing e-conomics and
quantitative economics, makes a demonstrative analysis
of the effectiveness of tourist investment in the process of assisting the poor in the western regions, The paper makes a
quantitative study of its impact on the local economic development from the aspects of investment contributions rate and investmentefficiency rate. The result indicates the tourist investment is of significant effectiveness to the economic growth of the western regions and is of immediate needs under the backdrop of the development of the western regions. In terms of developing trend, the
investment efficiency factor is playing more and more conspicuous role in local economic development while the mere quantitative factor is showing the trend of continual weakness. The policy of assisting the poor by tourist investment needs to be further deepened and perfected, Therefore, the paper offers the policy orientation with raising the efficiency of tourist investment as its core.