The radio controlled clock system which was using STM32 MCU as the control core and receiving Chinese code through the selfmade rod antenna displays the full time on the LCD monitor and obtains the realtime data by MCU decoding after frequency selection amplified. The system power supplied by solar energy systems with stopwatch counter timer,digital countdown timer and signal strength detection could output stability constant power. The whole system improved signaltonoise ratio adopted by AGC and displayed signal strength while reducing overall energy consumption as much as possible in order to improve power endurance. The performance of the antenna is an important influence on the performance of clock radio system, the system works excellently with clear time code signal while the field strength is 1.0mV/m and works normally while the field strength is 0.5 mV/m. The test of selecting frequency amplifier module shows that the whole system has high sensitivity while the testing data of display module shows that the system can reduce the power consumption effectively with turning off backlight by timing.