The invention discloses a low-temperature storage technique of liquid tar, which comprises the following parts: tar storage groove (1), heat conductivity oil pipe (2), heater (3), tar circulating pump (4), tar transmission pump (5) and tar valve (6), wherein the heater is set on the bottom of tar storage groove to heat bottom tar, which keeps most of tar at low-temperature state; several heat conductivity oil pipes are set in the tar storage groove from up to down, which drains water outsides and avoids overflow accident of tar. The invention can stew liquid tar for a long time, which prevents tar from oxygenizing and volatilizing effectively. |