The invention belongs to the technical field of office equipment, and particularly relates to a manual stamping device. The stamping device comprises a base, a vertical plate is fixedly installed on the base, two supporting plates are transversely installed on the upper portion of the vertical plate, sleeves are fixedly installed at the free ends of the supporting plates, lifting rods are arrangedin the sleeves in a penetrating mode, limiting tables are installed at the top ends of the lifting rods, and a fixing column is fixedly installed on the vertical plate. A mounting seat is verticallyinstalled at the free end of the fixing column, a sliding rod is arranged in the mounting seat in a penetrating mode, a first gear and a second gear which are engaged with each other are installed inthe mounting seat, the first gear corresponds to racks, circular truncated cones are integrally formed on the side walls of the two sides of the first gear, and notches are formed in the circular truncated cones; clamping strips are vertically arranged in the notches at the lower end of the sliding rod, and the clamping strips are located under the racks; and an inkpad table is horizontally installed on the side, close to a connecting rod, of the second gear, a seal is arranged at the lower end of the connecting rod, and the seal is located above the inkpad table. The manual stamping device aims to solve the problems that inking is troublesome and stamping efficiency is reduced due to structural defects of an existing stamping device.