In 1981 he graduated from Novopolotsk Polytechnic Institute (NPI) specializing in Industrial and Civil Construction. From 1984 he was a post-graduate student at Research Institute of Concrete and Reinforced Concrete (Moscow, Russia). In 1987 he received his PhD degree. From 1996 to 1998 he was Postdoctoral student at Belarusian State Polytechnic Academy. In 1999 he received his Postdoctoral degree. In 2000 he was awarded academic title of Full Professor.

From 1988 he was Associate Professor at the Department of Reinforced Concrete and Masonry Constructions in NPI. From 1999 to May 2003 he was Dean of Engineering and Construction Faculty. Since 2000 till present, Dmitry Lazovsky has been Professor at the Department of Building Construction. On May 8, 2003 he was appointed Rector of Polotsk State University by order of Ministry of Education No. 98 as of May 03, 2003. From March 2021 he is Full Professor at the Department of Constructions.

Currently teaches the following disciplines:

Dmitry Lazovsky was elected Academician of Belarusian Academy of Architecture (Minsk, 2003), Academician of Belarusian Engineering Academy (Minsk, 2004), Academician of International High Education Academy of Science (Moscow, 2005), Academician of International Academy of Engineering (Moscow, 2006). He was awarded Public Service Medal.

Under his leadership and with his direct participation, design theory, methods, algorithms and programs for the condition assessment of building construction in operation and in the process of their reinforcement were developed. He was the first to offer scientifically grounded method of analysis of composite physically nonlinear rod segments in relation to reinforced concrete elements during short duration load and continuous load. The method of analysis is included into main normative documents of the Republic of Belarus in the sphere of construction.

With Dmitry Lazovsky 's direct participation, analysis of structure and scientific support of construction of National library of the Republic of Belarus were carried out. In additon, expert examination of long-span roof constructions of sports facility Minsk-Arena, structural coverage of the Summer Amphitheatre Slavianski Bazaar in Viciebsk, etc. were carried out with his direct participation. Moreover, 5 PhD theses were defended under his leadership.

D. Lazovsky published more the 170 scientific and methodological works, including 1 monograph.