Background:  Pulmonary rehabilitation with remote supervision has been widely used in the recovery of post-COVID-19 patients. Objective: To evaluate the long-term effectiveness of Pulmonary Telerehabilitation (PTR) in patients after hospitalization due to severe COVID-19 pneumonia. Methods: Clinical, interventional, prospective study carried out in a university hospital (Brazil), approved by the institution's ethics committee. About 90 days after hospital discharge, 240 patients underwent clinical evaluation and performed a six-minute walk test (6MWT). 107 patients met the criteria to participate in the PTR (six-minute walking distance (6MWD)<400m or reduction in SpO2?4%). 50 patients started the PTR (Intervention Group, IG) and 57 did not (Control Group, CG). The latter group received the usual guidelines for their convalescence. The PTR included structured exercises under remote supervision over 12 weeks, 3 sessions/wk. The primary endpoint was 6MWD. Both groups performed the 6MWT for inclusion (6MWD-1) and after 6 months (6MWD-3), and IG performed an evaluation at the end of the PTR (6MWD-2). Result (table): 30 out of 50 patients (IG) completed the study, and 37 out of 57 (CG) had the two 6MWT. Conclusion: Severe post-COVID patients with reduced functional capacity showed a significant and lasting increase in 6MWD after PTR when compared to those who received only usual physical therapy guidelines.