This paper investigated and analyzed the effects of biochar on maize plant growth, yield and soil properties in field experiment, with the biochar addition at the rates of 0, 20 t/hm2 and 40 t/hm2. The results showed that, compared with the control (no biochar used), biochar amendment with 20 t/hm2 and 40 t/hm2 biochar inhibited the maize growth at the beginning growth, showed in lower plant height, less biomass and leaf chlorophyll content. With biochar addition at the rates of 20 t/hm2, the maize plant maintained higher biomass, leaf area index and chlorophyll content in the late growth stage, but no significantly difference with 40 t/hm2. With the biochar addition at the rates of 20 and 40 t/hm2, soil organic carbon were increased by 34.79% and 44.93%, soil total nitrogen increased by 4.88% and 12.20%, respectively. Biochar amendments significantly increased soil pH and soil volumetric water content, but decreased soil bulk density. Compared with conventional treatment, the maize yield were increased by 4.80% and 2.20%, with the biochar addition at the rates of 20 t/hm2 and 40 t/hm2, but no significantly difference with control. The results above provided a theoretical basis for biochar on improving soil fertility and enriching the efficiency of crop production in the Huang-huai-hai Plain.