The invention provides an electric transmission line information collecting and early-warning apparatus, which comprises a left box component, a right box component and a threaded rod transmission hinge mechanism, wherein the left box component and the right box component are set oppositely to construct an installation cavity of the threaded rod transmission hinge mechanism; the threaded rod transmission hinge mechanism is set at an inner side of the installation cavity of the threaded rod transmission hinge mechanism; one side end of the threaded rod transmission hinge mechanism is connected to the left box component and the other side end thereof is connected to the right box component; and the threaded rod transmission hinge mechanism is used for driving the left box component and the right box component to open or close. In the invention, the left box component and the right box component are shaped as ball structures, so high-voltage corona is prevented from being produced effectively; the operation can be carried out with electricity; and the installation is convenient; and the apparatus provided herein is provided with the threaded rod transmission hinge mechanism, thus a transmission threaded rod can be driven to make the left box component and the right box component be opened and closeed; and rapid installation is realized.