Production method for improving cleanliness of track steel molten steel

The invention belongs to the technical field of clean steel production, and particularly relates to a production method for improving the cleanliness of track steel molten steel, converter smelting, LF refining, VD furnace vacuum treatment and full-protection continuous casting are sequentially carried out, the end point carbon content is controlled to be larger than or equal to 0.14% during converter smelting, and steel core aluminum, silicon manganese and other alloys are sequentially added in the tapping process for deoxidation and alloying; after LF refining, slagging and desulfurization, the sulfur content is controlled to be smaller than or equal to 0.01%, then alloys are sequentially added for deoxidation, denitrification, inclusion modification and other operations, argon is blown from the bottom in the whole LF refining process for stirring, and inclusion in steel is promoted to float upwards; carrying out VD vacuum treatment, and carrying out bottom blowing of argon during the VD vacuum treatment to