Discipline is one of the manners applied in the police environment. Dedication and high discipline of members of the police in order to improve professionalism is required to achieve the purpose and role of police. One that affects the discipline is religiosity of the police member. The purpose of this study was to determine the relationship between religiosity and discipline among police officers. The hypothesis proposed was that there is a positive relationship between religiosity and discipline on police officer at the Police Resort (Police) Kendal. Sampling method used was purposive sampling with a sample size of 50 people. Data analysis technique used was product moment correlation analysis. The results of analysis of data obtained correlation values rxy = 0.747 with p = 0.000 (p <0.01). This showed a very significant positive relationship between religiosity and discipline on police officer. It means that the higher the religiosity of Police, the higher discipline on police officer. Thus the hypothesis in this study was accepted.