This is single-arm phase I/II study designed to evaluate the safety and efficacy of golcadotinib in combination with the CHOP regimen for patients with newly diagnosed peripheral T-cell lymphoma (PTCL). The study adopts a two-stage design, consisting of a Phase I and a Phase II parts. In the phase I study, a standard "3+3" design will be used. The primary endpoints of the Phase I study are the maximum tolerated dose (MTD) and the recommended Phase II dose (RP2D). The primary endpoint of the Phase II study is the complete response rate (CRR) of the golcadotinib combined with CHOP regimen.