Abstract: Girth welding tests were performed on L245M steel pipes by using E7018-1H4R electrodes and a domestic E5015 electrode, separetely. Notches were prefabricated in the base metal, heat-affected zone and weld of the joints. The notch tensile properties of different regions of the joints were investigated by slow strain rate notched tensile tests under uncharged and pre-charged hydrogen conditions. The hydrogen embrittlement sensitivity was analyzed, and the morphology of the notched tensile fracture was observed. The results show that pre-charging with hydrogen had no effects on the notched tensile strength of the L245M steel base metal. The hydrogen embrittlement sensitivity index of the base metal was only 5.2%, indicating low notched sensitivity and hydrogen embrittlement sensitivity. Under pre-charged hydrogen condition, the hydrogen embrittlement sensitivities of the weld and heat-affected zone obtained by welding with the E5015 electrode and those obtained by welding with the E7018-1H4R electrode were 47.5%, 9.5%, 9.1%, 6.6%, respectively. Except for the weld obtained by welding with the E5015 electrode, which exhibited high hydrogen embrittlement sensitivity, all other regions showed good resistance to hydrogen embrittlement. Pre-charging with hydrogen had no significant effect on the heat-affected zone and weld fracture morphology obtained by welding with the E7018-1H4R electrode, which remained as dimple morphology and mixed fracture morphology of toughness and brittleness, respectively. Pre-charging with hydrogen transformed the fracture morphology of the heat-affected zone obtained by welding with the E5015 electrode from dimple morphology to mixed fracture morphology of toughness and brittleness, and the proportion of brittle fracture in the mixed fracture morphology of toughness and brittleness in the weld increased.