SrB6O10·5H2O flower-like and jujube-like superstructures consisting of nanoplates were prepared by a facile solution route，in which NH4HB4O7·3H2O and SrCl2·6H2O were used as raw materials and the liquid precipitation method was adopted. The superstructures were characterized by SEM，TEM and XRD. The results of XRD and chemical analysis indicated that the products were single phase SrB6O10·5H2O and the purity was 99.5%. Experiments were carried out to investigate the growth mechanism of the flower-like structures with the assistance of the TEM and SEM analysis. The mechanism of spherical aggregation of the SrB6O10·5H2O nuclei followed by the strong anisotropic 2D crystal growth was proposed. The effects of reaction temperature and reactants concentrations were also studied. It was found that the sizes of the aggregates and nanoplates increased with the elevating of temperature. The structure of samples transformed from disordered aggregations into flower-like and jujube-like superstructures，and the temperature of 70℃ was a crucial point for the change of substructure nanoplates from irregular shape to rectangular shape，and from disordered aggregation to ordered aggregation. With a lower concentration of the strontium reactant，the degree of orderliness decreased and the aggregates consisting of disorderly arranged nanoplates were observed.