A highperformance boost DCDC power converter is developed by using pushpull topology and pulse width modulation (PWM) controlling technique based on STM32F103RBT6 microcontroller. The DCDC power converter has input voltage range from 15 to 25 V, output voltage range from 30 to 36 V, and maximum output current can be up to 1 A. The experiment results show that the DCDC power converter have excellent line regulation and load regulation, low ripple, high efficiency, as well as overcurrent and overvoltage protection. Also this converter can display output voltage and current values, and it has potential applications in the field of small and mediumsized boost switching power supply.