The invention belongs to the field of weed killer, in particular to a pyrithiobac-sodium containing soluble powder, soluble granules and soluble tablets. The invention aims at providing a pyrithiobac-sodium containing pesticide new formulation as well as improving the utilization rate of active ingredients and enhancing environmental compatibility by improving the formulation. The technical scheme thereof includes that a pyrithiobac-sodium containing soluble powder, soluble granules or soluble tablets comprises the components such as pyrithiobac-sodium crude drug, wetting agent, dispersing agent and a carrier, wherein the soluble tablets also comprise adhesive, lubricating agent and disintegrating agent. The invention has the beneficial effects: firstly, product is completely dissolved in water when in use, thus spraying is more uniform; secondly, the pyrithiobac-sodium containing soluble powder, soluble granules and soluble tablets are solid, thus being convenient for production and transportation and reducing production cost.