The aim of this work is to investigate the effect copaíba oil the knee inflammation disorders (gonoarthrosis). Eighteen patients (12 women and 06 men) with gonoarthrosis and with range age of 45 – 65 years. The patients were randomly in test and control groups. The control group receiving pulsation ultrasound wave (model: Sonacel Dual, sing: Bioset) of 1 MHz frequency and 0,8 watt/cm2 power were applied for 8 minutes followed of massage mineral oil for 5 min. to the knee joint for a total treatment period of 10 sessions. The test group receiving pulsation ultrasound wave (model: Sonacel Dual, sing: Bioset) of 1 MHz and 0,8 watt/cm2 power were applied for 8 min. followed of massage copaíba oil for 5 minutes to the knee joint for a total treatment period of 10 sessions. After the application of massage the groups to performed exercise in order to complement of the treatment through passive muscle stretching. In both the groups the time of each session for 30 minutes. The evolution of flogistics signals were evaluated in the first and ten session, thourgh of the goniometry, perimetry, muscle power scale and visual analogue scala (VAS). In the assessments of the VAS were observed that the test group reduced the 82,6 ± 3,2% pain while the control group reduced the 58,5 ± 3,6 % pain. The movement range were increase on the control at 8,8 ± 0,9% and the test at 24 ± 0,8%. After the assessment of the 10 sessions were observed that control group didn’t present to increase of the power scale and the test group presented to increase of the 8,1 ± 0,8%. In accord with results achieved, the group that receiving copaíba oil treatment in the knee inflammation disorders (test group) obtained the better therapeutic efficacy in the reduced of disease symptom.