Mikalai Lazavik was born in 1951 in the village of Nevinyany in Vileyka district, Minsk region. In 1972 he graduated from the Belarusian Institute of Agricultural Mechanization, in 1993 – from the Belarusian State University, in 2000 – from the Academy of Management under the President, in 2003 he finished postgraduate studies at the Academy of Management. He had a PhD in economic sciences.
Earlier, Mikalai Lazavik was a deputy of the Supreme Soviet of the 13th convocation, he also was a member of the commission on state construction and local self-government. He was the CEC secretary since 2000. He was released from the job on October 17, 2016 for health reasons by presidential decree.