Spinal cord injury (SCI) is a common and severe traumatic central nervous system injury in clinical practice. Currently, the treatment of SCI remains a worldwide challenge.International studies have confirmed that TSCS is an effective non-invasive technique to activate the body's movement-related circuits. This method utilizes a unique stimulation waveform that is transmitted through electrodes placed on the skin of the spine and spreads through the dorsal roots (DRs) to activate the spinal cord neural circuits.The main objective of this study is to have patients with chronic incomplete (AIS B/C/D) spinal cord injuries wear "transcutaneous spinal cord electrical stimulator " and undergo "Kunming locomotor training" for 6 months, observe the synergistic effects of the two, and evaluate whether this treatment method can improve patients' motor functions.

Inclusion Criteria:

• 1. Chronic (≧6 months) paraplegics (T1-T10) with incomplete(AIS B/C/D) spinal cord injury Incomplete aged 16-50 years;
• 2.Subjects must be able to read, understand, and complete the Visual Analogue Scale;
• 3.Subjects voluntarily sign the informed consent form approved by the ethics committee.

Exclusion Criteria:

• 1. Obvious renal, cardiovascular, hepatic, and mental diseases;
• 2.Pregnant or lactating women and women of childbearing age who are unwilling to use contraception;
• 3. Limb contracture deformity;
• 4. Modified Ashworth > Grade 2;
• 5. Unhealed fractures;
• 6. The subject is currently participating in other studies;
• 7. The researcher's opinion is that the subject does not comply with the research protocol and/or is not suitable to participate in this study.