In this study，maize straw was pyrolized at 300℃ and 500℃. The collected biochar was thoroughly mixed with NPK fertilizer at a series rates of 0%，5%，10%，15%（W/W)，and then made into granular fertilizer. Two pot experiments were established in order to investigate the impacts of these different biochar complex fertilizers on maize and soybean. The results showed that the alkalinereleased N and available P content in the soil grown with maize were 21% and 25% higher respectively than that grown with soybean. The dry matter of maize grown in the biocharcontaining fertilizer was 6%～58%，35% on average，higher than that in chemical fertilizer. However，in general，there was no significant difference in soil properties and crop dry matter whether，biocharcontaining fertilizer or conventional chemical fertilizer was used. It showed that the effect of fertilizer depends on many factors，such as fertilizer property，dose，soil，and crop and even climatic conditions. The small quantity of biochar input into the soil through fertilizer addition may not result in a significant change of soil and plant. Whether longterm application of biocharcontaining fertilizer may produce a significant effect on soil properties and crop growth still need further research.