A kind of shadowgraph wheelchair accessory, comprising: one first framework has a plurality of first retention bars, and in those the first retention bar whats arranged in parallel first framework, and those two ends of the first retention bar abut the inner sidewall of what first framework respectively； And a film casket seat, it is s shape, including one first hook part and one second hook part, which is used to place on those any first retention bars of what, and second hook part is to place film casket.一種X光攝影輪椅輔具，包括：一第一框體，具有複數個第一定位橫桿，該些第一定位橫桿平行排列於該第一框體內，且該些第一定位橫桿二端分別抵接於該第一框體的內側壁；以及一膠片匣座，其為S形形狀，包括一第一勾部及一第二勾部，該第一勾部被用以放置於任一該些第一定位橫桿上，該第二勾部用以放置膠片匣。
