Hypofractionated Post-prostatectomy Radiotherapy (HYPORT)for Localized Prostate Cancer

Inclusion Criteria: * European Cooperative Oncology Group score(ECOG):≤ 2; * Patients with pathologically confirmed prostate cancer and completed radical resection of prostate cancer; * Postoperative pathological staging of AJCC version 8 pT 3a, pT 3b, pT 4, margin (+), or N1; or serum PSA≥0.1 ng/ml 6 weeks after surgery; or serum PSA \<0.1 ng/ml 6 weeks after surgery, subsequent follow-up process revealed two consecutive sustained PSA increases (≥0.1 ng / ml) and no clinical imaging (Whole Body Scan (ECT), magnetic resonance imaging (MRI),68Ga PSMA PET / CT, etc.) signs of metastasis; * Expected survival time \>5 years; * Patients who voluntarily accept the experimental study protocol after informing the existing treatment options; Exclusion Criteria: * poor recovery of postoperative urinary control; * a previous history of pelvic and abdominal radiotherapy; * Participate in other clinical trials that are mutually exclusive with the study intervention within 4 weeks prior to the start of the study; * Patients with other malignancies and acute or chronic infections such as human immunodeficiency virus (HIV) (+), hepatitis C virus (HCV) (+) and/or positive syphilis; * Patients that the investigator considers unsuitable to participate in the clinical trial; patients with other serious systemic diseases, evaluation and compliance of the trial, including severe respiratory, circulatory, neurological, mental, digestive, endocrine, immune, urinary, and other systemic diseases; * Patients with contraindications related to radiotherapy; * Written informed consent could not be provided, and treatment compliance was poor.Patients unsuitable for participation in this clinical trial as per the judgement of the investigator.