The invention provides an argon blowing method of a ladle turret and a steel ladle argon blowing turret in continuous casting mode. The method comprises the following steps that a, molten steel tapping is carried out, specifically the molten steel tapping temperature of the converter procedure is controlled between 1620 DEG C and 1630 DEG C; b, argon station on oxygen feeding aluminium wire is carried out, specifically a steel ladle is moved to an argon station, the argon front temperature of molten steel is controlled between 1600 DEG C and 1610 DEG C; c, argon station stirring is carried out, specifically the molten steel is stirred for 3-4 min in the argon station after the molten steel on oxygen and feeding wire, the outgoing temperature of the molten steel is controlled between 1595 DEG C and 1600 DEG C; and d, steel ladle argon blowing is carried out, specifically the steel ladle is lifted and conveyed to a continuous casting machine steel ladle argon blowing turret, argon gas isput into a blowpipe of the steel ladle bottom, argon gas argon blowing is open, and the soft argon blowing time is controlled between 15 min and 20 min. The process of the steel ladle argon blowing is moved to the continuous casting turret for implementation, the contradictory problem that the molten steel argon blowing time and the production rhythm is solved. While the production continuity isensured, the purity degree of the molten steel and the yielding rate of alloy are improved, and it is ensured that the quality of the purity degree of the molten steel is met.