Disclosed is a novel bipolar ablation needle. The novel bipolar ablation needle is characterized by comprising a needle rod (1), a needle head (2), an inner insulation casing tube (3), an electrode casing tube (4), an outer insulation casing tube (5), an isolation insulation layer (6) and a first PTC casing tube (7). The needle head (2) and the needle rod (1) are integrated, the needle head (2) is arranged at one end of the needle rod (1), has the large diameter and is sharp, the isolation insulation layer (6) is arranged at the position, close to the needle head (2), of the needle rod (1) in a sleeved mode, the inner insulation casing tube (3), the electrode casting tube (4) and the outer insulation casing tube (5) are sequentially arranged at the position, on one side of the isolation insulation layer (6), of the needle rod (1) , and the needle head (2) on the other side of the isolation insulation layer (6) is provided with the first PTC casing tube (7). The novel bipolar ablation needle is not sticky when achieving tissue coagulation by means of the characteristic of a PTC thermistor, and rebleeding complications and other risks are avoided.