A kind of flashing device improvement of crop growth facilities,Include: a crop growth facilities,With a left stretcher body,It is opposite on the right side of the left stretcher body to be equipped with a right stretcher body; One rain shade component; The component of taking down the exhibits of predetermined number,This etc. take down the exhibits component separately included a track rope,Most first clamping components,One rope circuit part and a connection piece,Grade the first clamping components upper section is pivoted what track rope,Bottom end then positions what rain shade component top surface respectively,The fixed what rope circuit part in the upper end of the connector,First clamping components top side of the lower end then fixed what rightmost side in place; And one fill up component,It include one second clamping components and an elastic component,The upper section of second clamping components is pivoted what track rope,Bottom end then positions the what rain shade component top surface rightmost side,The elastic component is set with the what track rope that is pivoted,And its right end is on the left of what the second clamping components,Left end is then on the right side of the first clamping components of the what rightmost side.一種作物栽培設施之遮雨裝置改良,包括有:一作物栽培設施,具有一左架體,該左架體右側相對設有一右架體;一遮雨蓬構件;預定數目之收展組件,該等收展組件分別包含有一軌道索、多數第一夾持構件、一循環索件與一連接件,該等第一夾持構件上段樞設於軌道索,底端則分別定位於遮雨蓬構件頂面,該連接件之上端固設於循環索件,下端則固設在位於最右側之第一夾持構件頂側;以及一填補組件,包含有一第二夾持構件與一彈性件,該第二夾持構件之上段樞設於軌道索,底端則定位於遮雨蓬構件頂面最右側,該彈性件套裝樞設於軌道索,且其右端抵靠於第二夾持構件左側,左端則抵靠於最右側之第一夾持構件右側。