In order to reduce the amount of chemical fertilizer，improve the quality and yield，and provide a theoretical basis for fertilizer reduction and improvement of high yield and efficiency in potato production，the effects of combined application of carbon-based organic fertilizer and chemical fertilizer on the growth and yield of potato were explored.A field experiment was conducted using‘Helan 15’ as material.Seven treatments were set up，including without fertilizer(CK)，chemical fertilizer alone(T1)，carbon-based organic fertilizer alone(T2)，chemical fertilizer and carbon-based organic fertilizer with the maximum amount of application(T3)，chemical fertilizer with the maximum amount of application and carbon-based organic fertilizer with half the maximum amount appliation(T4)，chemical fertilizer with half the maximum amount applied and carbon-based organic fertilizer with maximum amount of application(T5)，both chemical fertilizer and carbon-based organic fertilizer with half the maximum amount application(T6).The indicators such as plant height，stem diameter，crown width，chlorophyll content，net photosynthetic rate，dry and fresh weight of plant，yield and quality of potato at different periods were studied for the purpose to determine the optimum fertilization scheme for potato production in Zhangjiakou region of Hebei province.The results showed that carbon-based organic fertilizer with chemical fertilizer treatments promoted the growth of potato，compared with chemical fertilizer and carbon-based organic fertilizer treatments，and the effect of T6 treatment was the best.At the harvest time，the plant height，stem diameter，fresh and dry weight above ground of potato of T6 treatment were significantly higher than that of CK，increased by 12.47%、33.43%、75.83% and 134.25%，respectively.Compared with CK，the crown width of T6 increased by 13.19%，but the difference was not significant.The total chlorophyll content and net photosynthetic rate of T6 were also significantly different from those of CK，which was 2.97 and 2.21 times of CK，respectively.The content of vitamin C and protein of T6 were the highest in all fertilization treatments，and it was significantly higher than that in other treatments，increased by 29.95% and 41.36%，compared with CK，respectively.The starch content of T6 treatment was significantly higher than that of CK，T1 and T2 treatment，had no significant difference from that of T3，T4 and T5 treatment；The starch content of T6 treatment was increased by 10.09%，compared with CK.The yield and economic benefit of T5 treatment were the highest，and there was no significant difference between T5 and T6 treatment，while there were obvious differences between the two treatments and other treatments，compared with CK，the yield and economic benefit of the two treatments were increased by 87.04% and 83.24%，respectively.In conclusion，in the production of potato in Zhangjiakou region of Hebei province，the T6 treatment could achieve the goal to promote potato growth，enhance photosynthesis，increase the yield and economic benefit，improve potato quality.Therefore，T6 treatment was a suitable fertilization scheme for potato grown in Zhangjiakout region of Hebei province.