Posture may be defined as the natural (habitual) position of the body in the surrounding space maintained by coordination of various muscles, proprioception and the sense of balance and is considered to be indicator of human’s physical and psychological health. The process of posture formation starts in the age of 6-8 years and lasts till the age of 17-21: spinal curvatures and foot arch are formed when the movement stereotype is stabilized and nervous system is developed. Preventive measures for posture observation must be often carried out in order to prevent deformities of the spine. One of the simplest methods of evaluating spine functional condition is goniometry of spinal curvatures in sagittal and frontal planes that gives opportunity to evaluate the functional condition of the spine according to biokinematic parameters, i.e. in sagittal plane according to angles of thoracic kyphosis, cervical and lumbar lordosis, while in frontal plane according to magnitudes of tilt angle of shoulders, interior angles of scapular, waist triangle and magnitude of asymmetry of pelvic position regarding the transverse plane. The wearable motion sensor system for posture monitoring has been developed considering the evaluation methods of spine functional condition via biokinematic parameters. Motion sensor modules are located according to anthropometric point for evaluating sagittal curvatures of spine and shoulder asymmetry in frontal plane. The designed system detects deviations of biokinematic parameters in real time and informs the wear. The goal of this research is to develop technical solutions for sensor system integration during the garment operating process and make the prototype applicable for everyday use.