Objectives Our study aimed to investigate the relationship between the severity of frailty and the long-term care (LTC) needs of older adults from Chinese communities. Design A cross-sectional study. Setting Three Chinese community health centres. All data were collected by trained researchers through face-to-face collection. Participants We surveyed a total of 540 older residents who aged 60 or older from community in Guangzhou, China. Measures The Chinese version of the Tilburg frailty indicator was used to assess the frailty status of participants. LTC needs was evaluated by Integrated Home Care Services Questionnaire. Using non-adjusted and multivariate adjusted logistic regression analysis to evaluate frailty and LTC needs, then smoothed plots, threshold effect analysis and P for trend were used to further investigate the relationship between them. Results The prevalence of frailty was 45.2% among the 540 older adults enrolled (aged 70.4 +/- 8.3 years; 65.7% females). 27% had higher LTC needs, which increased to 65.1% for individuals with frailty. Logistic regression analysis showed that frailty was strongly associated with LTC needs (OR 3.06, 95% CI 2.06 to 4.55, p<0.01). In the multivariate model, after adjusting for demographic characteristics, economic situation, activities of daily living and comorbidities, frailty remained significantly associated with LTC needs (OR 2.32, 95% CI 1.39 to 3.88, p<0.01). The smoothed plots showed a nearly linear relationship between frailty and LTC needs. Threshold effect analysis showed that every point increase in frailty, the score of LTC needs increased 1.3 points. The IQR to regroup individuals with frailty. Compared with the first quartile (scores <= 2), the incidence of LTC needs increased with the frailty status (p value for trend <0.01). Conclusion There is a linear relationship between frailty and LTC needs. With the increasing degree of frailty, the LTC needs of older adults dramatically increases.