The utility model discloses a movable installation platform. The movable installation platform comprises a platform body, a base, a shear fork mechanism and an oil cylinder, wherein the shear fork mechanism comprises N shear fork units which are arranged up and down, and N is an integer not less than 2. Each shear fork unit comprises an outer arm and an inner arm, wherein the outer arm and the inner arm are hinged in the center. The outer arm of a last shear fork unit is hinged to the inner arm of a next shear fork unit, the inner arm of a last shear fork unit is hinged to the outer arm of a next shear fork unit, the outer arm of the top shear fork unit is hinged to the platform body, the inner arm of the top shear fork unit is in sliding connection with the platform body, the inner arm of the bottom shear fork unit is hinged to the base, the outer arm of the bottom shear fork unit is in sliding connection with the base, each outer arm and the corresponding inner arm are hinged at the center position through an articulated piece, a cylinder body of the oil cylinder is in rotary connection with the base, and the end portion of a piston rod of the oil cylinder is in rotary connection with the articulated piece of the bottom shear fork unit. The shear fork mechanism is stressed better, the lifting distance of the shear fork mechanism is controlled conveniently, the stress effect and the lifting effect are improved, air hoses can be vertically transported, the work efficiency is improved, and the transportation quality and the installation quality are ensured.