In this research that has done at Establecimiento Penitenciario de Varones El Milagro – Trujillo, that has the target to know and relate the “FAMILY FACTORS THAT INFLUENCE DELINQUENT BEHAVIOR OF INTERNAL SENTENCED FOR THE CRIME OF ROBBERY AGGRAVATED FROM PRISON HOUSE C-3 "DURING THE YEAR 2014, THIS WORK HAS BEEN CONDUCTED WITH A SAMPLE OF 55 INTERNS” Through the research has come to know; by the evidence, facts and events, presented by quantitative and qualitative data, various methods such as observation, interview, survey and bibliography used to find information on family factors that influence behavior were applied delinquency of inmates; Likewise the instruments that allowed collecting significant events. In the first chapter the theoretical framework describe family factors and criminal behaviors, as well as present the problem, hypothesis and objectives of the research; in t...