In order to determine the relationship between job stress and job performance, how are you working situations cause discomfort in nurses working in services emergency, medicine, pediatrics, surgery and obstetrics Hospital II - 2 Tarapoto. Established a research study descriptive correlational level, with qualitative and quantitative approach, cross-sectional, with prospective data collection, whose population consisted of 60 nurses, the same that formed the sample to 100%. To larecolección data on occupational stress was used the survey technique, which fueronanalizados criteria of descriptive statistics, tables represented in frequency division ygráficos. The instrument used to identify job stress was the questionnaire " The Nursing Stress Scale - NSS " written by Pamela Gray Toft and James Anderson, validated and standardized by WHO - World Health Organization, with Cronbach's Alpha ...