The utility model relates to a stack-up type heat resistant glass square plate and belongs to the field of daily necessities. The stack-up type heat resistant glass square plate comprises a square plate body, wherein placement platforms are arranged on the four sides of the square plate body, the top parts of the placement platforms are parallel and level, and the four side surfaces of the square plate body are inclined planes. The stack-up type heat resistant glass square plate is simple in structure, convenient to stack up, and small in floor area; when two square plates are mutually stacked up, the square plates are in surface contact, so that the plate openings of the square plates can be effectively protected, and the mutual collision is avoided; a bulge is arranged at the bottom of the square plate to play the role of heat insulation, meanwhile the square plate is placed more stably due to the bulge; and the whole body of the stack-up type heat resistant glass square plate is made of heat-resistant borosilicate glass and can be used in a microwave oven, a roaster, a refrigerator and a dish washer, and the application range is wide.