Introduction: Changes on the functional capacity of children with cerebral palsy are known and little valued. Neuromotor disorder resulting from brain injury can promote changes at the level of the respiratory system, cardiovascular and motor skills. Objective: To evaluate the pulmonary function, respiratory muscle strength and exercise capacity in children with cerebral palsy. Methods: We evaluated 6 children, 5 males aged from 7 to 12 years. All were submitted to six minutes walk test (6mwt), spirometry, manovacuometry and GMFCS evaluation. Results: All children walked less distance in TC6 than the predicted value (256.63 ± 100.25 x 605.24 ± 109.05, p = 0.006), had smaller respiratory pressure than the predicted values (Pimáx -36.66 ± 24.18 x -62.91 ± 0.028 and Pemáx 40,66 ± 27,87 x 84,36 ± 13,22 p = 0,020), restrictive disorder with less FVC and normal VEF1/CVF and strong negative correlation Pimáx x GMFCS (r-0.90 and p 0.01) Conclusion: The respiratory muscle strength and the walk test are significantly below the values predicted by the literature and disturbance in restrictive pulmonary function.