The purpose of the study was to estimate contingent of children that underwent ultrasonography in outpatient conditions of children hospital and to investigate reserves for improvement of actual ultrasonography service. The method of expert evaluation was applied to analyze medical documentation of 1171 children aged 0-18 years that underwent ultrasonography. The analysis was applied to demographic data, number of previous ultrasonography, specialty of physician involved into investigation, children chronic diseases and type of ultrasonography applied. The wide range of ultrasonic examinations were carried out in out-patient conditions of multidisciplinary children hospital was established. Their spectrum was determined by the age of patients. Children were most often referred to ultrasonography by cardiologist, pediatrician and gastroenterologist. In examined patients dominated diseases of digestive organs, congenital abnormalities, diseases of nervous and urinary systems, circulatory system. In the structure of morbidity, proportion of diseases of endocrine system, circulatory and digestive systems increased with age and the proportion of diseases of nervous, musculoskeletal systems and congenital abnormalities decreased. Among the types of ultrasonic examination, the first places in frequency took studies of circulatory system, abdominal organs, kidneys and retroperitoneal space. The large proportion of patients underwent ultrasound testing again. The comparative analysis demonstrated increasing of proportion of ultrasound studies of endocrine and reproductive organs and decreasing of musculoskeletal system and brain. It is proposed to apply received results in studying particularities of children that underwent ultrasonography in the inpatient and outpatient conditions. The received data can be used in planning of required volume of different diagnostic services at different levels.