The invention relates to appliances for children, and particularly discloses a pattern pressing device for plasticine suitable for children. The pattern pressing device for the plasticine suitable forthe children includes a base assembly, a cartridge assembly, a plasticine placement slot assembly and a pattern pressing assembly. The device can impress patterns on the plasticine, the pressing elastic force can be adjusted, and the plasticine can be easily demolded. The seat assembly comprises a seat plate, a triangular block, rotary seats, a rotary shaft, a notch, a rotary wheel, a main rotaryrod, sliding rod grooves, a sliding rod seat and a supporting block. Two rotary seats are arranged on the left side of the seat plate. The rotary seats are rotatably connected with the rotary shaft.The rotary wheel is arranged at the middle of the rotary shaft. The notch is arranged at the upper end of the rotary shaft. The triangular block is fixedly connected with the left end of the seat plate. The main rotary rod is fixedly connected with the right end of the rotary wheel. The sliding rod seat is fixedly connected with the upper end of the right end of the main rotary rod. The sliding rod grooves are symmetrically arranged in the sliding rod seat. The supporting block is fixedly connected to the right end of the seat plate. The right end of the main rotary rod is arranged on the upper end of the supporting block.