To provide a pellet producing method, with which a cold bond pellet having high strength and excellent application can be obtd. and the term obtaining such a pellet is shortened and a grape-state combination among the pellets is hardly developed, in the producing method of the cold bond pellet for steelmaking utilizing an oil- and iron-containing sludge.

Water is added in a cement base binder and formed as pasty state and the oil- and iron-containing sludge is mixed in this paste and pelletized and cured. At this time, the water is added into the cement-base binder and formed as the pasty state and the oil- and iron-containing sludge is mixed in the paste and pelletized by compress-forming with the compressive forming pressure having ≥9.80 MPa and cured at ≥60°C in the atmospheric air temp.