The invention discloses a batch leveling and slicing device for lead frame copper strips. The batch leveling and slicing device comprises a leveling unit, a slicing unit and a steering collection unit, the leveling unit is used for leveling the lead frame copper strips and comprises a first guide mechanism and a leveling mechanism, the slicing unit is arranged at one end of the leveling unit, is used for cutting the lead frame copper strips into copper sheets and comprises a strip cutting machine and a second guide mechanism, the strip cutting machine comprises a control box, the control box is provided with a cutter, and the steering collection unit is arranged at one end of the slicing unit, is used for converting the conveying direction of the lead frame copper sheets into the width direction of the lead frame copper sheets and comprises a transferring mechanism, an arranging mechanism, a horizontal moving mechanism and a conveying mechanism. According to the batch leveling and slicing device, simultaneous batch operation can be carried out on the multiple various lead frame copper strips within a certain width range, in addition, leveling operation is carried out before the slicing step, so that the slicing uniformity and flatness are improved, the copper sheets can be conveyed in the width direction after slicing, and the energy consumption used for conveying is saved.