The system of managing quality is used for directing and running an organization regarding the quality. Quality is a degree where a set of essential factors meets the conditions. The purpose of integrated system of quality is to join the existing system of managing into one effective system, with respecting the diversity of conditions belonging to the field of organization, while choosing the components and models of integration. Among the productive organization in the Republic of Croatia there have been, until now, many organization with an established system of managing quality. The system of managing envirnoment and the system of managing safety at work have been implemented into a small number of organizations. The importance of productive organizations deserves the implementation of integrated quality system in order to upgrade managing, envirnoment protection and safety on work. The proposed and treated model of the quality system in productive organization includes the following managing system: quality managing as a base of the integrated system, environment managing and managing of safety on work. The integration of those system of managing includes pooling of requests from the belonging norms, methods, laws, regulations and other requests. The documentation of the integrated quality system is made of three wholes of documentation: documentation for describing the system, for describing the procedure and documentation that describes steps of procedure. Effectivness, in the quality managment system, is in relation between the result achived and the means used. A constant improvment is necessary to reduce the costs of quality. This is feasible only by constant upgrading of organization managment, production and business system, tehnology and permanent employee training. An evulation of the effectiveness of the integrated quality system has been given descriptively on the basis of managing quality. This evolution is based on the assumed and materialized crucial gain of introducing an integrated quality system into a productive organization.