Based on a 180 nm BCD process, a novel high performance bandgap voltage reference without op-amp was designed, which was based on the traditional bandgap reference structure. The bandgap reference voltage was adjusted through the cascode current mirror technology and the negative feedback network to eliminate the adverse effects of the op amp offset voltage. The circuit was simulated under Cadence EDA tools of Spectre. As the simulation results showed, the output of the design was 1228 V. Within the range of temperature of -40 ℃ to 125 ℃, the temperature coefficient was 147×10-6/℃. The PSRR was -86 dB at 1 kHz, and the linear adjustment rate was 65×10-5/V.