The purpose of this study is to describe the legal protection arrangements for workers who suffer from work fatigue, for workers of age, nutritional status, work attitude and gender.

The type of research described is normative research using legal materials conducted with document study techniques as well as descriptions of respondents. The number of respondents in this study was 135 people using disproportional random sampling technique. Data is collected by means of an observation and questionnaire.

The results of study showed that the regulation of legal protection against work fatigue was regulated in the 1945 Constitution, Law no. 1 of 1970 concerning K3, Law No. 13 of 2003 concerning Employment, Law No. 40 of 2004 concerning the National Social Security System, Law No. 36 of 2009 concerning Health, Law No. 24 of 2011 concerning BPJS, PP No. 50 of 2012 concerning OHS Management Implementation Respondents aged> 4 years experience mild complaints of 12 people and moderate complaints of 50 people. Respondents aged 40 years and over experience mild fatigue of 16 people, moderate complaints of 57 people. Respondents with below normal nutritional status experienced mild fatigue of 1 person, moderate fatigue of 98 people. Respondents with normal nutritional status experienced 22 people with mild fatigue, 98 with moderate fatigue. Response with obesity status experienced mild fatigue as many as 5 people, moderate fatigue as many as 6 people Respondents with moderate risk work attitude experienced mild fatigue as many as 11 people, high risk work attitude as many as 17 people experienced moderate fatigue as many as 77 people. Male respondents experienced mild fatigue of 23 people and moderate fatigue of 79 people, female respondents experienced mild fatigue of 5 people and moderate fatigue of as many as 28 people.

The study concluded that respondents aged 40 years and under experience more moderate fatigue than those who experienced mild fatigue, those aged over 40 years experienced more moderate fatigue, and compared to experiencing mild fatigue. Respondents who were under normal nutritional status experienced more moderate fatigue than those who experienced mild fatigue. While respondents with normal nutritional status experienced more fatigue than mild fatigue.

From the conclusions it is suggested that respondents know the nutritional intake, avoiding muscle tension by always stretching the muscles and the company setting up ergonomic facilities.