To address the difficulty of balancing high-and low-temperature performance in hot recycled asphalt mixture design and the performance imbalance revealed during long-term service, wheel tracking test, repeated creep loading test, multiple-sequence repeated load test (MSRL), bending beam test, and semi-circular bending test were conducted under different recycled material content and asphalt content conditions. A performance-controlled mix design method was established for plant-mixed hot recycled asphalt mixture (PHM) and verified through engineering trials. The results show that under recycled asphalt pavement (RAP) contents of 25% and 30%, the optimal asphalt content can be determined using flow number (F_n), composite creep strain rate (R_CCSR), and fracture energy (G_f) to evaluate high- and low-temperature performance. Based on these indicators, an optimized design method for the optimal asphalt content of PHM is proposed through the balance of high-and low-temperature performance. The mixtures designed using this optimal method exhibit superior high- and low-temperature performance, with volume indicators meeting specification requirements. Engineering practice further demonstrates that the mixture quality satisfies the control requirements for the middle layer of expressways, thereby validating the rationality and feasibility of the proposed design method.