One kind can move back the temperature feeling detection sensing device of ear muff, include an ontology, a probing shell, a sensing member, a moving part and an impeller. Ontology has an open end and a perforation and interior is equipped with a sensing circuit. Probing shell group sets what open end and has a through-hole and a slot. Sensing member accommodates in what probing shell and corresponds to through-hole and electrical connection sensing circuit. Moving part is pivoted on what probing shell and includes an annulus, and annulus circle is in probing shell and position what slot. Impeller group sets what perforation and to drive moving part so that annulus protrudes slot.一種可退耳套之體溫感測裝置，包含一本體、一探頭殼體、一感測件、一連動件及一推動件。本體具一開口端及一穿孔且內設有一感測電路。探頭殼體組設於開口端且具一通孔及一槽孔。感測件容置於探頭殼體內並對應通孔且電性連結感測電路。連動件樞設於探頭殼體上且包含一環狀部，又環狀部圈繞探頭殼體並位於槽孔內。推動件組設於穿孔並用以帶動連動件以使環狀部突出槽孔。
