Global block chain environment construction method

The invention discloses a global block chain environment construction method. The method comprises the following steps: configuring a server IP (Internet Protocol) address inside a block chain box within a global block chain environment, and setting one server as an inner master node of the block chain box, wherein the block chain box is a hardware device which includes one or more servers pre-installed with internal block chain environments, and the global block chain environment is a main block chain environment into which a plurality of block chain boxes are added; configuring a mapping relationship between a public network IP address and a master node IP address of the global block chain environment, and mapping the public network IP address to the master node IP address; and judging whether other block chain boxes in the global block chain environment are added into the global block chain environment for the first time or not, if not, configuring the public network IP address anda port of the global bloc