Evaluate the safety and efficacy of CD70-targeting UCAR-T cells in the treatment of CD70-positive advanced solid tumors.

4 planned dose cohorts will be evaluated during dose escalation phase. The dose expansion will be initiated after SRC (safety review committee) review the avaliable safety, PK and preliminary efficacy data.

Inclusion Criteria:

1. Ability to understand and sign a written informed consent documen；
2. At the date of signing ICF, 18 ~70 years old, male or female；
3. Histopathological confirmed advanced or metastatic solid tumors patients who have failed to standard treatment or intolerance with standard treatment；
4. Positive CD70 expression;
5. At least one measurable lesion at baseline per RECIST version 1.1；
6. The expected survival time is more than 12 weeks;
7. ECOG 0-1 points;
8. Adequate organ functions;