A semi-automatic awning with a spring according to the present invention includes a body case in which an awning sheet is installed to be withdrawn and retracted, a winding pipe on which the awning sheet is wound, a pipe-spring connector configured to connect the winding pipe and a tension spring, a tension spring central axis for providing tension for withdrawal and retraction of the awning sheet, a plurality of male gears and female gear which are involved in the withdrawal and retraction of the awning sheet and control a connection of the winding pipe and the tension spring central axis, and an operation knob which can change a connection position of the winding pipe and the tension spring. Thereby, the length of the awning sheet may be freely adjusted while capable of easily unwinding and winding the awning sheet by adding an adjustable spring force to the manual force, and the partially unwound state may be easily fixed, and thereby anyone of any age and gender can easily use.
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