The invention discloses a built-in concrete beam bridge steel concrete anchor for limiting local cracking, which is a trapezoidal box body composed of a steel bottom plate, a front steel plate and a rear steel plate, an upper steel side plate and a lower steel side plate. The trapezoidal box body is divided into three chambers by two steel webs, namely, an upper chamber, a middle chamber and a lower chamber; Prestressed reinforcement corrugated pipes are arranged in the middle room, and the ends of the corrugated pipes are connected with the prestressed reinforcement holes reserved on the steel bottom slab, and the fine-grained concrete fills the cavities of the three chambers. This component makes full use of the large rigidity and good tensile property of the steel concrete structure, and solves the phenomenon of local cracking of the structure caused by the stress concentration of the concrete slab and the excessive lateral component force of the prestressed anchorage zone. The invention is applicable to the engineering practice of concrete bridges with larger prestressed tendons such as municipal bridges and long-span expressway crossover bridges.