The article defines and characterizes a number of key principles of fundamentalization of the assessment of the quality of knowledge of future physics teachers: effective monitoring, generalization of knowledge, complexity, phasing, technological innovations, strategic planning, active use of scientific and pedagogical knowledge. Thus, the principle of effective monitoring involves taking into account three main aspects of monitoring, which are important in the context of improving the quality of student training in the university environment (organizational-management, procedural-didactic, intra-personal) and implements a number of management functions of monitoring the quality of knowledge of future physics teachers through planning and forecasting, organizational leadership, administrative activities, motivational measures, control and diagnostic measures, information analysis. The principle of generalization of knowledge as a key principle of foundationalization of the assessment of the quality of knowledge of future physics teachers is aimed at determining the necessary minimum knowledge that will allow the specialist to successfully solve the professional tasks facing him in modern society. The principle of complexity provides orientation to the evaluation of the quality of the educational process by components (target, motivational, content, operational-activity, control-regulatory, evaluation-resultative) and compliance with a number of requirements when evaluating the quality of knowledge of future physics teachers (planning, systematicity and systematicity, objectivity, openness and transparency, economy, subject matter, taking into account the individual capabilities of students, unity of requirements). The principle of phasing as a principle of foundationalization of the quality of knowledge assessment of future physics teachers implies that this process should be considered as the creation of a holistic system of evaluation of the professional activity of future physics teachers, which meets the standard of higher education, which includes the professionalization stage, the foundationalization stage and the stage of practical readiness. The principle of technological innovation involves the selection of new methods, means and forms of organization for assessing the quality of knowledge of future physics teachers, thereby designing an innovative system for assessing the fundamental knowledge of physics students. The principle of strategic planning provides: the orientation of the process of professional training of physics teachers on the development of the personality of the future specialist through the creation of an objective evaluation system in the context of academic integrity; development of a strategic evaluation plan; compliance of the didactic process with modern trends in the development of science, technology and educational and scientific trends; optimal combination of various forms and methods of assessing the quality of knowledge of future physics teachers; rational application of digital tools for assessing the quality of knowledge at various stages of training at the university; compliance of the training results of future physics teachers with the requirements set forth by the field of their professional activity, ensuring their competitiveness in the market of educational services. The principle of active use of scientific and pedagogical knowledge provides that the creation of a system for assessing the quality of knowledge of future physics teachers should reflect the current state of pedagogical science in the context of monitoring the quality of education, predict future directions and prospects for development, as well as consider cause-and-effect relationships, interrelationships and the influence of the content of professional training on program results at the level of theoretical generalizations. It was found that the process of assessing the quality of knowledge of future physics teachers is planned as follows: conduct an analysis of the course (each educational component) to develop an assessment that will meet the goals and methods of the course; drawing up a calendar plan for control, which covers different stages of training: before the start, during training and at the end of the course; the choice of control methods that correspond to the goals and phases of control; selection of assessment tools, such as tests, surveys, problem-solving, in particular, tools based on the use of digital technologies; determining the weight of the current control in the final result.