Achieving the coordinated development of elderly care resource allocation and regional economy is an important issue to promote Chinese-style modernization. Based on the data of the western region from 2014 to 2022，this study constructs an evaluation index system to empirically analyze the spatial-temporal characteristics and obstacles of the coordinated development of elderly care resource allocation and regional economy by using the coupled coordination degree model and the obstacle degree model. The study shows that from 2014 to 2022， the level of economic development had always outperformed the level of elderly care resource allocation. The mean values of the coupling coordination degree between the two systems ranged from 0.543 to 0.708，showing a slow upward trend，and presenting a spatial gradient pattern of“high in the southwest and low in the northwest”and core-periphery differentiation characteristic. The obstacle factor analysis reveals that the shortage of elderly care service resources and limited economic scale are the key barriers to the coordinated development of the two systems. Therefore，according to the results of the study，corresponding policy recommendations are put forward to provide references for promoting high - quality coordinated development of elderly care resource allocation and the regional economy in the western region.