Support of top and sides basically enable to control the deformation of roadway in deep stress roadway through soft rock, but the deformation of deep and soft roadway floor is out of control, which makes the floor heave the main factor affecting the deformation of deep and soft rock roadway, the floor reinforced bolting and grouting technology was put forward by analyzing floor heave mechanism of deep and soft rock roadway and observation on site in No. 5 Mine of Yangquan Mining Group, the result shows that the technology enables to solve the floor heave of deep and soft rock roadway.