The present invention provides a conductor paste for rapid firing that is applied to a ceramic green sheet and is fired along with the green sheet under high-rate temperature rise conditions at a high heating rate of at least 600° C./hr from room temperature to the maximum firing temperature. The paste includes as a conductor-forming powder material: a conductive metallic powder comprising, as a main component, nickel powder; and barium titanate ceramic powder with a mean particle diameter of 10 nm to 80 nm as an additive. The ceramic powder content is 5 to 25 mass parts per 100 mass parts of the conductive metallic powder.