The utility model discloses a kind of fixed platform for floor heating protective layer construction leveling equipment, it is related to building technology field, including the fixed mechanism of being installed in the ground and the corner formed by wall, fixed mechanism includes fixed platform structure and fixed clamping seat structure;The utility model is cooperated through sweep level gauge and fixed mechanism, it is convenient to provide horizontal and stable erecting environment for sweep leveling device, improves construction quality, realizes the ability of ensuring floor heating protective layer flatness and pouring thickness;Again through the cooperation of fixed platform structure and fixed clamping seat structure, it is convenient to device to open dismantle shift and reuse with position at any time, improve the convenience of device, realize the ability of device reuse;Finally solve the problem that sweep level gauge is difficult to erect steady, difficult to guarantee that floor overall flatness and pouring thickness after floor heating protective layer construction is completed.