The zero sequence voltage measured by zero sequence direction element is in fact the zero sequence voltage of the transformer. As the development of power system， the capacity of transformer becomes larger and its zero sequence impedance becomes smaller， so does the zero sequence voltage， which can not meet the sensitivity requirement of the protection. This leads to malfunction of the protection. By analyzing the phase's relationship between transformer neutral zero sequence current and zero sequence current of the protection， a novel direction element based on zero sequence current of the transformer neutral point is proposed to overcome the above shortcoming. This element uses the zero sequence current of the transformer neutral point as a reference， and compares with the zero sequence current of the protection. Then their phase's difference is taken as evidence to determine direction of the fault. The simulations show that this element is correct and reliable.