The invention provides an energy-efficient wireless sensor network distribution type link scheduling controller based on a graph coloring method. Through constructing conflict graphs in two hop neighbor scopes to any node, a sequence of time slot distribution is determined according to a priority of each link in an interference pattern and an interference degree. The line with a high priority acquires a priority scheduling opportunity. If the priorities are the same, scheduling is performed according to the interference degrees. The priority of the link and the interference degree are determined respectively through the number of connection links with the distributed time slots and the number of the interfered links. Because the adjacent time slots are distributed for the node, unnecessary state conversion of the node can be reduced so that network node energy consumption is reduced too.