Steel truss floor bearing plate is composed of steel bar, truss and floor bearing plate(galvanized). Steel trusses are finished mading in processing factory automatically and prefabricated in length. It is using metal sheet welding, silanization, pure manganese phosphating, washing drying, galvanizing and other rust removal and rust prevention technology, rust prevention film winding seal. In site construction, the bearing truss floor plate of shall be placed in the correct position firstly, and then steel bars shall be welded, followed by welding bolts, and then the steel bars shall be placed on site for binding. After customer's acceptance, concrete shall be poured in it.