Abstract: An upgraded data acquisition system for the experiments was carried out at the Radioactive Ion Beam Line in Lanzhou (RIBLL). The PCI-CAMAC bus interface was employed. The communication between the CAMAC modules and the computer was realized through the CC32 controller and PCIADA. The online analysis code of the system can be directly coupled with PAW or ROOT. Several runs of experiments show that the system is reliable. The maximum data acquisition rate of 930 KB/s is achieved.