Belonging to the technical field of steel material heat treatment, the invention relates to a low carbon steel plate for pressure-bearing equipment and a normalizing process thereof. The steel plate comprises the following chemical components (wt%): less than or equal to 0.20% of C, 0.3%-0.5% of Si, 1.0%-1.6% of Mn, less than or equal to 0.020% of P, less than or equal to 0.005% of S, less than or equal to 0.30% of Cu, less than or equal to 0.25% of Cr, less than or equal to 0.25% of Ni, less than or equal to 0.05% of Mo, less than or equal to 0.035% of Nb, less than or equal to 0.03% of Ti, greater than or equal to 0.02% of Al, less than or equal to 0.002% of Ce, and the balance Fe and inevitable impurities. According to a heat treatment technology system, the normalizing temperature is 900-950DEG C, the temperature holding time is 0.2-2h, and the steel plate is discharged from the furnace to undergo air cooling. The steel plate treated by the normalizing heat treatment process has excellent mechanical properties, tensile strength up to 450-600MPa, yield strength of 300-460MPa, elongation of 22-32%, impact energy of over 27J under -20DEG C, and qualified 180-degree cold-bending (d=a). The process has the characteristic of low production cost, and is applicable to industrial production of steel plates with thickness of 20-50mm.