• Subjects voluntarily enrolled in this study, signed the informed consent form, had good compliance, and could cooperate with follow-up visits;

• esophageal cancer diagnosed by histopathology; clinical staging of cT1b-cT2 N+ M0 or cT3, any N, M0 (according to AJCC 8th edition);

• Age 18-75 years old, male or female;

• ECOG PS 0-1;

• measurable tumor lesions or non-measurable lesions that can be evaluated;

• not having received any previous anti-tumor therapy for esophageal cancer, including radiotherapy, chemotherapy, surgery, etc;

• Normal or mildly to moderately abnormal lung function (VC%\>60%, FEV1\>1.2L, FEV1%\>40%, DLco\>40%) that can tolerate esophageal cancer resection;

• No contraindications to surgery;

• function of vital organs meets the following requirements (excluding the use of any blood components and cell growth factors within 14 days): (1) Normal bone marrow reserve function with white blood cell (WBC) ≥3.0×109/L; neutrophil count (NEUT) ≥1.5×109/L, platelet count (PLT) ≥100×109/L, hemoglobin (Hb) ≥90g/L; (2) Normal renal function with serum creatinine (SCr) ≤1.5 times upper limit of normal (ULN) or creatinine clearance ≥60 ml/min (Cockcroft-Gault formula); (3) Normal liver function with total bilirubin (TBIL) ≤1.5 times the upper limit of normal (ULN); and an albumin transaminase (AST) or alanine transaminase (ALT) level ≤2.5 times the upper limit of normal (ULN); (4) Normal coagulation function with International Normalized Ratio (INR) ≤ 1.5 times the upper limit of normal (ULN) and Activated Partial Thromboplastin Time (APTT) ≤ 1.5 times the upper limit of normal (ULN).

⁃ Patients with potential childbearing potential are required to use a medically approved contraceptive method (e.g., IUD, birth control pills, or condoms) during and for 6 months after the end of the study treatment period; must have had a negative serum HCG or urine HCG test for 72 h prior to study entry; and must not be breastfeeding.