PROBLEM TO BE SOLVED: To realize efficient confirmation of analysis result of moving action useful for evaluation of moving action, such as walking by a human.SOLUTION: There is a moving action state displaying device comprising means for controlling a displaying part so that, based on acceleration components a, a, ain 3 directions at each of times during human moving action measured with an acceleration sensor, first data point D1 corresponding to acceleration components in 2 directions at a marked time ton a first coordinate system K1 in which acceleration component of 2 directions among the 3 directions are recognized as 2 axes and second data point D2 corresponding to acceleration component in 1 direction at the same marked time ton a second coordinate system K2 in which acceleration component of the other 1 direction among the 3 directions and time t are recognized as 2 axes are updated relatively to change in the same marked time tand displayed in a linked manner.