In the article it is formulated problem of ensuring safe evacuation of children with limited mobility, from the standard and research points of view. Provisions of the existing normative documents, despite an essential difference between children with limited opportunities and their peers without restrictions, and disabled people of working-age and aged people, define identical requirements to evacuation ways and exits in buildings with their stay as they belong to one functional fire-hazard class F1.1. Analysis of aproblem from the research point of view has shown that features ofprocess of evacuation of handicapped children in our country are almost not studied. At the same time, the review of foreign works has shown that in the countries of Europe and USA the close attention is paid of safety of the children's population in various emergencies, especially at the fires as they take the 3rd place among the main reasons for death of children, after road accidents, and incidents on reservoirs. However it should be noted that all works which are carried out in this area allow to solve a problem of safety of children with limited mobility at the fire partially as there are no quantitative data about evacuation process, in particular about parameters of their movement. Therefore researches in residential social service institution with children of various groups of mobility on the proven methodology have been conducted. Received and in a consequence statistically processed empirical material has been used for determination of dependences of speed of the movement of children with limited mobility on density of a human flow and from their emotional state. As a result there were obtained numerical characteristics of coefficients of aj and D0j., and parameters of speed of the free movement V0 for the studied groups of children on different types of a way, that will allow to carry out fire risk assessment and to establish the scientifically based sizes to evacuation ways and exits in buildings with their mass stay.