This study investigates how destination social responsibility (DSR) improves resident quality of life (QOL) through the lenses of signaling theory and emotional solidarity theory. The study demonstrates the mediating role of resident emotional solidarity toward the destination and the moderating roles of disclosure tone and visual messages. Three experiments indicate that continuous (vs. one-time) DSR positively affects resident emotional solidarity and QOL, whereas emotional solidarity has a mediating role. Emotional solidarity elicited by continuous (vs. one-time) DSR is significantly higher when the disclosure tone of DSR is vivid (vs. pallid). However, when DSR is disclosed using visual messages, emotional solidarity effects of DSR types are not different in vivid tone but have significant differences in pallid tone. This study expands the application of signaling theory and emotional solidarity theory to resident QOL studies and provides suggestions on improving residents’ QOL through DSR.