During the manual implantation process of radioactive particles, the technical skill of doctors is strictly required. In addition, the implantation workload of the particles is large, the surgical time is long, and the particle implantation precision also can be affected. In order to solve the problem, the invention relates to an electric particle implantation device for short-distance radioactive therapy. The electric particle implantation device comprises a soleplate, an outer needle drive module, an inner needle drive module, an inner needle, an outer needle and a radioactive particle supply module, and is characterized in that the soleplate is fixedly connected with an outer needle drive motor and an inner needle drive motor, an outer needle clamping sleeve is fixedly connected with the outer needle, the inner needle drive module is connected with the inner needle by virtue of a friction pair, the inner needle is a solid needle, the outer needle is a hollow needle, and the inner needle slides in the outer needle. The electric particle implantation device can be used as an end execution mechanism of a mechanical hand to automatically implant particles, the high-precision radioactive particle implantation surgical operation can be realized by adopting image navigation, and the electric particle implantation device also can be used as an electric handheld radioactive therapy particle implantation device and is simple in structure.