The utility model discloses a bridge case room prestressing force stressing jack device of taking one's place, including the base, electric block, vertical braces and horizontal rotary drum arm, electric block and vertical braces set up on the base, and horizontal rotary drum arm level sets up on vertical braces, a serial communication port, the device of taking one's place still includes the jack, places vertical braces's inside in it in and fixes on the base, the both ends of horizontal rotary drum arm are provided with the pulley, and the last wire rope of electric block passes the pulley on the horizontal rotary drum arm, and wire rope's end is provided with the couple. The utility model provides a bridge case room prestressing force stressing jack device of taking one's place, its isrational in infrastructure, and the simple operation has realized the operation of taking one's place of the flexibility of bridge case room prestressing force stressing jack in narrow and small space, has improved the efficiency of construction, has reduced intensity of labour, has improved the security of operation, its technological advantages that have the low carbon environmental protection have better popularization and an using value in that continuous bridge is under construction.