Purpose This study aimed to translate, adapt, and test the psychometric properties of the Longer-term Unmet Needs after Stroke (LUNS) monitoring tool for Chinese stroke patients. Materials and Methods The LUNS monitoring tool was translated and cross-culturally adapted using the Functional Assessment of Chronic Illness Therapy translation methodology and two rounds of expert consultation. A cross-sectional study was conducted to test the validity and reliability of the Chinese version of the tool from April to October 2023 in Xi’an. Results The Chinese version of the LUNS monitoring tool had a Cronbach’s alpha value of 0.702 and the ICC was 0.732 (p < 0.001). The I-CVIs were above 0.90 and the S-CVI/Ave was 0.983. The factor analysis extracted eight factors, collectively accounting for 66.283% of the data variance. The correlation coefficient between the LUNS and WSO needs assessment questionnaire was 0.105 (p = 0.019). Conclusions The study confirmed good reliability and validity of the Chinese version of the LUNS monitoring tool in measuring the prevalence and level of unmet need in stroke patients. It will help identify the unmet needs of stroke patients, and to guide rehabilitation service response during individual patient consultations, facilitate service development, and inform commissioning decisions.