The invention discloses a device for pressing a calcium master alloy block into a lead ingot. The device for pressing the calcium master alloy into the lead ingot comprises a pressing machine, a feeding conveying belt, a discharging conveying belt, a first transferring mechanism and a second transferring mechanism. The pressing machine has an operating table and a pressing plate located above theoperating table and capable of rising and falling. The feeding conveying belt and the discharging conveying belt are arranged on the two sides of the operating table respectively. The first transferring mechanism is used for transferring the lead ingot from the feeding conveying belt to the operating table. The second transferring mechanism is used for transferring the lead ingot from the operating table to the discharging conveying belt. The device for pressing the calcium master alloy block into the lead ingot is applicable to pressing calcium master alloy into the lead ingot semi-automatically. The weight of the calcium master alloy in each lead ingot is arranged according to the proportion of lead and the calcium master alloy in the grid formula correspondingly; thus when the grid is cast, the lead ingot with calcium master alloy block pressed-in can be fed directly; respective feeding of the lead ingot and the calcium master alloy is not needed; uniform mixing of metal elements ofthe calcium master alloy in lead is benefited; and in addition, forgotten feeding or less feeding of calcium master alloy because of negligence is not easy to cause so that the grid cast is uniform and stable, and the quality is guaranteed.