Present proofs are not enough to back diverse hypertension treatment focuses in mature patients. We assessed if frailty changes the relationship between systolic blood pressure (SBP) and 8-year all-cause mortality in local area abiding mature patients. We gathered longitudinal information from the ActiFE Ulm study (Activity and Function in the Elderly in Ulm; Germany). The relationship among SBP and mortality was investigated utilising Cox proportional hazards models adapted to age, gender, schooling, smoking, liquor utilization, trouble in sleeping, diastolic BP, and antihypertensive drugs, assessing the presence of impact change by fragility as indicated by a frailty index dependent on the gathering of deficiencies. The predominance of history of hypertension was 53.8% (median Systolic BP, 144.0 mm Hg, median diastolic BP 78.0 mm Hg) as found after testing 1170 members (median year of life: 73.9 years, 41.6% females). 8.1 years was calculated to be the median follow-up time, spotting 268 losses of lives. We distinguished 251 (21.5%, 114 passings) fragile members (frailty index was greater than or equal to 0.2). We identified effect modification through frailty. Among non-slight a J-shaped affiliation was found with hazard proportion, 4.01 (95% CI, 1.13–14.28) for Systolic BP<110 mm Hg, hazard proportion, 0.92 (95% CI, 0.53–1.59) for Systolic BP 140–150 mm Hg, and hazard proportion, 1.98 (95% CI, 0.75–5.27) for Systolic BP≥160 mm Hg. For fragile mature adults, a propensity toward lower hazard among those with Systolic BP≥130 mm Hg was noticed. Our outcomes recommend the presence of effect alteration by frailty demonstrating a potential defensive influence for raised Systolic BP in delicate mature patients concerning all-cause mortality even after to adapting to diastolic BP and antihypertensive treatment.