[2] Myechyslaw Hryb was born on September 25, 1938, in the village of Sawicze, then part of the Second Polish Republic (now the Dyatlovsky District of the Grodno Oblast), into a peasant family.

He went to school in Dyatlovo and began working from the seventh grade, first digging peat, then as an auxiliary worker at a construction site.

He served as a police inspector of the Internal Affairs Department of the Plissky District Executive Committee of the Vitebsk Region.

Immediately after his appointment, he headed the investigation of the so-called "Vitebsk Case" on the serial killer and rapist Gennady Mikhasevich.

In the same year, he joined the Democratic Club, created in the Supreme Soviet by deputies who supported the building of democracy in Belarus.

[5] On 15 April 1994, Hryb, as head of state and ex officio member of the Council of Heads of State of the Commonwealth of Independent States, on behalf of Belarus signed the Agreement on the creation of a free trade area as "the first stage of the creation of the Economic Union"[6] (which is still as of 2024 used by Belarus for foreign trade, in particular, with Azerbaijan and Georgia[7]), as well as the "Agreement on Ukraine's accession to the Economic Union as an associate member" (which has never entered into force).