Portable slope ratio measuring device

The invention discloses a portable slope ratio measuring device, relates to the technical field of slope ratio measurement, and provides the following scheme for solving the problems that during slope ratio measurement, an existing slope ratio measurer is large in size and inconvenient to carry during use, and due to the fact that the bottom of the existing slope ratio measurer is uneven, measurement errors occur, and errors occur in engineering construction. Comprising a leveling instrument, a limiting mechanism is fixed outside the leveling instrument, a folding mechanism is fixed at the top of the leveling instrument, a measuring mechanism is arranged on the front face of the leveling instrument, the limiting mechanism comprises a magnet fixed to the bottom of the leveling instrument, and a storage frame is fixed to the front face of the magnet. The folding mechanism comprises a fixing sleeve rotationally connected with the horizontal ruler, a block body is fixed to the top of the horizontal ruler, and a U