The present invention relates to a spring ruler, so that the second ruler is drawn out from the first, so as to overcome the limitation of drawing a line together with measuring the length by the extension of the second as well as the first. There is a purpose. To this end, the present invention has a display unit 16 configured to measure a length or draw a line on one side, a first storage space 12 having a predetermined depth is formed inside, and a second storage space on one side. a first member 10 having a space 14 formed therein; a second character 20 configured to be accommodated and drawn out in the first storage space 12 of the first character 10, and a display unit configured to measure a length or draw a line on one side; and a pressing part 30 configured in the second storage space 14 of the first member 10 to control the withdrawal of the second member 20 .
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