You can use the "Link" function in the WPS document to set the automatic update of the picture name. Here are the specific steps: 1. Insert the chart into the document and name it. 2. Enter the same text as the chart name elsewhere in the document and set it as a "link". 3. In the Link settings dialog box, select In-Document Item, and then select the diagram to link to in the drop-down menu. 4. After confirming the settings and saving the document, when you change the chart name, the related "Link" text will be automatically updated. Note that if your diagram is not in the same document, you will need to use the "External Document" option to set up the link. Also, if you modify the file name or path of the document, the link may become invalid.