This article aims to explore the recovery effect of the bioelectrical stimulation therapy on muscle injuries in aerobics athletes. Non-invasive medical techniques are adopted to activate muscle tissue through electrical currents, promoting muscle contraction ability and functional recovery. This article selects 100 aerobics athletes with muscle injuries through questionnaire surveys and interviews. The Modulo Plus electrical stimulation device is used, and personalized treatment plans are set. Muscle changes before and after treatment are monitored using electromyography and ultrasound technology. In the single-blind experiment, in the fourth week, the pain score of the experimental group decreases to 2.4 points; the functional recovery score increases to 75.2 points; the flexibility measurement reaches 19.2 cm. In the case-control study, the bioelectrical stimulation therapy cures all athletes in the sixth week, exceeding the conventional therapy’s 35 patients, and has a lower recurrence rate. In the cohort study, athletes who use the bioelectrical stimulation therapy for a long time have a shorter average recovery time of 15.3 days and a recurrence rate of 16%. In the muscle recovery experiment, in the eighth week after treatment, the electromyographic activity level of the experimental group increases to 58.6 μV; the muscle thickness increases to 4.3 mm; the echo intensity increases to 63.1 dB; the fatigue characteristic score drops to 2.1. These data indicate that the bioelectrical stimulation therapy has significant effects in reducing pain, promoting functional recovery, improving flexibility, shortening recovery time, and reducing recurrence rates and pain scores, thereby providing an effective treatment option for the recovery of muscle injuries in aerobics athletes.