A multi-needle point expanding radiofrequency ablation electrode needle, comprising a trocar, one end of which is provided with an opening for extending of needles, a handle portion fixedly arranged on the other end of the trocar and in which a plurality of slidable metallic sliding rods are provided, and a plurality of control sliding blocks that are slidably arranged on a peripheral wall of the handle portion. The present invention can control the number of the expanded needles, the extending direction of the needle and the extending length of the needle, such that an oriented expansion of electrode sub-needles, a complete ablation adapted to a tumor positioned below main vessels or in margin areas of organs and simplicity of operation are implemented.
