A kind of backboard with what waist support, it include a plate body and two elastomers, plate body has a vertebra accommodation groove and two mounting holes, two mounting hole sets the two sides of what vertebra accommodation groove in a manner of symmetrical, each elastomer is set in the mounting hole of what plate body, bearing force amount is provided to the small of the back to user, structure configuration so can achieve the effect that mitigate lumbar vertebrae burden and promote usage comfort.一種用於護腰之背板，包含有一板體與二彈性體，板體具有一脊椎容置槽與二安裝孔，該二安裝孔以左右對稱的方式設於脊椎容置槽之兩側，各彈性體設於板體之安裝孔內，用以對使用者的腰背部提供頂持力量，如此的結構配置即能達到減輕腰椎負擔且提升使用舒適度的效果。
