Reduction mammoplasty (RM) is an important procedure in the management of symptomatic greater breast hypertrophy with or without early-stage breast cancer. We aim to introduce a new procedure: the three-pedicle reduction mammaplasty technique. A prospectively maintained database was reviewed, and two prospectively registered clinical studies were included of all breast hypertrophy patients with or without breast cancer who underwent three-pedicle RM with inverted T incision at West China Hospital or the Fourth People's Hospital of Sichuan Province from 2018 to 2022. Patient demographics, patient-reported cosmetic results, quality of life (QoL), surgical outcomes and complications were assessed. During a median period of 22.5 months, 101 reduction mammaplasties were performed (Mage= 35.80; MBMI= 27.05). Mean reduction weight was 880.9 g ranging from 423-1630 g per breast. The nipple-to-sternal notch distance (N-SN) at post-operation was significantly shorter than preoperatively (left, 34.51 cm; right, 34.69 cm). Major complications and minor complications were 1.9% (1/52 patients) and 13.5% (7/52 patients), respectively. Multivariate logistic regression analyses showed that BMI > 30 was independent risk factors for a complication. Except for sexual and physical well-being at 1-month post-operation, patients gave a higher score on the BREAST-Q (breast satisfaction, physical well-being, psychosocial well-being) after the operation than before the operation (P<0.001). The three-pedicle RM technique was demonstrated to be an effective and safe RM procedure for moderate to severe breast hypertrophy patients with or without breast cancer, with the advantages of removing the lesions, reducing hypertrophic breasts and accomplishing mammoplasty. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors http://www.springer.com/00266.