The invention discloses high-strength bulb steel with uniform section performance and a production process thereof. The bulb steel comprises the following chemical components in percentage by mass: 0.07-0.12% of C, 0.30-0.50% of Si, 1.00-1.50% of Mn, P not more than 0.015%, S not more than 0.010%, 0.50-1.00% of Ni, 0.05-0.12% of V, 0.005-0.012% of Ti, 0.014-0.024% of N, C/N not more than 5.5, Ti/V not more than 0.15, Mn/Ni not more than 2.0, and the balance of Fe and inevitable impurities. The production process comprises the steps of electric furnace smelting, out-furnace refining, continuous casting, cogging, rolling and heat treatment process. The bulb steel has the following beneficial effects: a bulb and a web plate of the prepared bulb steel reach the yield strength of not lower than 440 MPa, the -40 DEG C low-temperature impact power of not lower than 49 J and the section yield strength difference of within 15 MPa; and the problem of the bulb steel incapable of synchronously satisfying high strength, high toughness and uniform section performance is radically solved.