The invention relates to microcrystalline glass, which belongs to a high-grade novel decorative material. The glass uses a natural inorganic material, adopts a specific control technology, and is manufactured by separating out special crystal phase in molten glass containing special components through a specific production technology. A microcrystalline stone can be used for decoration of internal walls, external walls and floors of various buildings, and is even an ideal material for a wash bedplate and a sanitary bedplate. However, the prior sintered microcrystalline glass is manufactured by melting and sintering twice, so that not only energy consumption of a fuel is high, but also a blank product has rough surface and high air porosity, thereby causing high secondary processing energy consumption and cost, and affecting thinning development trend of the microcrystalline glass. The microcrystalline glass is manufactured into a decorative plank by a floating (rolling) method, so indexes of the microcrystalline glass such as shock strength and compressive strength are superior to those of the sintered microcrystalline glass, and physical-chemical properties and decorative effect are superior to those of a natural stone. The thinning microcrystalline glass achieves continuous production, high efficiency and low cost. Because large-scale thinning of the product, the production process saves energy consumption, and is environment-friendly. Compared with the production line of the sintered microcrystalline glass plank with the same scale, the production process can save fuel oil by more than 50 percent.