This study aims to determine the significant relationship between muscle strength and physical performance on sniffer function in geriatrics and frailty. The type and form of this research is an analytical observational study with a cross sectional approach. In this study, the characteristics of the research subjects were analyzed including age, gender, history of previous diseases and comorbidities. The population is 30 geriatric patients with frailty who are treated at the Geriatric Polyclinic of dr. Moewardi Surakarta Hospital. The selection of subjects was carried out by consecutive sampling, namely the selection of all geriatric patients who met the inclusion and extraction criteria until the size of the subjects was met. The multivariate analysis used is linear regression. The results showed that in all geriatric patients in this study, it can be concluded that age (r=-0.529; p=0.003) has a negative and significant relationship with sniffer function, frailty score (r=-0.661; p=<0.001) also has a negative and significant relationship with sniffer function, muscle strength (r=0.476; p=0.008) had a positive and significant relationship with sniffer function and physical performance (r=-0.673; p=<0.001) had a negative and significant relationship with sniffer function. The new paradigm of this study is the finding that the average age of 73 years who experience impaired sniffer function is 80% (24/30). Olfactory disorders in women are higher at 81% compared to men, which is 75%. The average result of muscle strength in geriatric patients with decreased frailty was an average of 14.18 kg in women and 27.38 in men. The average physical performance score in the timed up and go test was 12.23 and physical performance had a significant relationship (p=<0.001) with sniffer function, where patients with a longer timed up and go test time have an ADI value of lower sniffer function.