The invention discloses a power utilization information safe transmission step and method in a ubiquitous power Internet of Things environment, and solves the problem that the current ubiquitous powerInternet of Things mainly faces an insertion attack and a monitoring attack. The invention provides a bidirectional centerless authentication security access authentication method under the ubiquitous power Internet of Things environment, a method for planning a forwarding path of the data after splitting and signing an intelligent electric meter in the ubiquitous electric power Internet of Things environment and a split data signature transmission method in the ubiquitous electric power Internet of Things environment. According to the invention, the authenticity and integrity of the information, and the data features, sources and the like during the data splitting and forwarding disturbance communication process are ensured by using a group signature technology, so that it is guaranteedthat an attacker cannot deduce the real individual power utilization information, the power utilization data lossless hidden transmission is guaranteed in combination with the data splitting and forwarding technology and the group signature technology, and the communication load between intelligent electric meters is reduced by using a lightweight pseudo-random table.