Magnesium substrate and preparation method thereof

A magnesium base plate comprises a base plate body, edge sealing strips arranged on the two sides of the base plate body and bonding bodies for bonding the base plate body and the edge sealing strips, and side grooves which extend inwards, penetrate through the bonding bodies, enter the base plate body and are used for embedding caulking strips in the splicing process are formed in the vertical middles of the edge sealing strips. Prismatic structures are arranged on the two sides of the base plate body, and the adjacent prismatic structures are connected through concave structures; an accommodating structure matched with the prismatic structure and an embedding structure matched with the concave structure are arranged on the inner side surface of the edge sealing strip; according to the invention, the base plate body is provided with the prismatic structure and the concave structure, so that the impact strength of the edge sealing strip and the base plate body is greatly improved. 一种镁基板，包括基板本体、设置在所述基板本体两侧的封边条