Objective To investigate the status quo of the frailty of the elderly in Haikou municipality and its influencing factors, and to explore the intervention strategies. Methods By convenient sampling, 700 elderly were selected from 10 communities in Haikou Municipality. The general information questionnaire and the Fried Phenotype (FP) were used for frailty screening, and 600 valid responses were collected. Based on the FP results, the respondents were divided into frail group and non-frail group. SPSS statistics 22.0 was used for statistical analyses. Data comparison between two groups was perfomed using t test, Mann-Whitney U test or Kruskal-Wallis H test depending on date type. Univariate analysis and logistic regression analysis were used to analyze the influencing factors of frailty. Results Of all the respondents, there were 215 cases (35.8%) in frailty group, who were (75.28±6.92) years old, and had FP of (3.48±0.63) points；there were 385 cases (64.2%) in non-frailty group, who were (71.99±7.11) years old, and had FP of (1.39±0.70) points. Univariate analysis showed that age, marital status, educational level, housework, family income, number of children, dwelling state, accompani ment during medical care, use of auxiliary tools, total number of diseases, and types of medication were the influencing factors of frailty(P<0.05). Logistic regression analysis showed that, except the factor of family income, the other factors mentioned above were the influencing factors of frailty(P<0.05). Conclusion Haikou municipality, a tropical city, has a high incidence of frailty among the elderly. Community medical workers should strengthen early screening for frailty and provide targeted interventions.