Abstract: The article presents the computer reconstruction of the Albazinsky fortress in 1685. Within the framework of the study, the method of ontological coordination of the maximum available sample of source data was used, which was subsequently repeatedly used in the reconstruction of other architectural complexes. At the first step, a general topographic plan of the settlement was created, containing all the archaeological data available at the time of the study. On top of the resulting painting plan, structures directly related to the fortress fence were reproduced, while the interior of the fortress was reproduced according to the cartographic drawing "Luosha". It was decided to fill in information gaps with information about architectural analogues of the period under consideration, as well as the general norms of wooden architecture. As a result of the work, a detailed three-dimensional model of the fortress was developed and a physical model was created for the scientific museum of Amur State University. A special feature of this work is the use of modern information technology tools, as well as a systematic approach, which made it possible to accurately and reasonably reproduce the appearance of the first outpost of the Amur region. It should be noted that all sources reflect only fragmentary background information on the problem under study, but their integration allows us to obtain a qualitatively new result. It is also worth noting that the developed three-dimensional models form a library of elements that simplifies subsequent reconstructions, and the three-dimensional printing technology allows to replicate the layout. In turn, the relevance of the research topic is related not only to the large number of similar lost architectural complexes, but also to the growing interest in patriotic education and national history in general.