The Northern Sea Route is the part of the Arctic Northeast Sea Route adjacent to Russian territory. Historically speaking,the opening up of the Northern Sea Route is a very tortuous and long process. Before the early seventeenth century,the inhabitants of Russia,mainly of the Pomors,completed opening the western section of the Northern Sea Route with their superb shipbuilding and navigation skills. From 1630s to 1640s,some pathfinders completed opening the middle and eastern sections of the Northern Sea Route during Russia’s territory expansion into Siberia. In the 1730s,the Russian government launched the ten-year-long Great Northern Expedition. Lena-Yenisei detachment led by Pronchishchev completed opening the eastern sea of the Taymyr Peninsula from the Olenyok River to the Komsomolskaya Pravda Islands. From 1878 to 1879,the expedition led by the Swedish explorer Nordenskiold completed opening the wester and northern seas of the Taymyr Peninsula from the Pyasina River around Cape Chelyuskin to the Komsomolskaya Pravda Islands after full preparation and careful planning,and also completed the entire voyage of the Northern Sea Route from west to east for the first time.