There are many key issues in the management of Big Data，which is an important strategic resource．We first review some definitions of Big Data from different perspectives． Then，we point out that Big Data is an important information resource． Then，the management characteristics of Big Data resource are investigated mainly from six aspects，including complexity，decision-support，rapid growth，value scarcity，the characteristic of repeatedly mining and function diversity． Finally，the key management issues of Big Data，including the acquisition issue，processing issue，application issue，property issue，industry issue and regulatory issue，are refined and briefly analyzed．