Labour pain is an acute pain that cannot be compared to any other pain. An appropriate nursing intervention can change perception of the childbirth experience. Hence, the nurses need to involve actively in application of pain perception strategies to relieve pain during labour. Warm shower is a trusted and easily available therapy. The present study aim to assess the effectiveness of Warm shower on pain perception and labour outcome among 200 primi parturient mothers who fulfilled the inclusion criteria were selected for the study. Visual Analog Scale and partograph was used to assess the pain perception and labour outcome. The warm shower at 37-degree C was showered hourly 15 minutes from 4cm to 8cm cervical dilatation. The overall mean level of pain perception was 3.98 with SD 2.12. The unpaired t =10.081 which is statistically significant at p<0.001. With regard to Blood loss andExplusion of placenta , the mean was and 0.25 with SD of 1.32 and 0.43 respectively. The t value for Blood loss and Expulsion of placenta was t= 6.486 and t=6.772 respectively which is statistically significant at p<0.001. Thus hydrotherapy is an evidence based care for reducing the pain perception during labour and improving the labour outcome.