The invention relates to a waterproof speed dome camera. The waterproof speed dome camera comprises a top cover (1), an outer spherical cover (2), an outer spherical cover support (3), an upper spherical cover (4) and a waterproof connector (5), wherein the outer spherical cover (2) is respectively fixedly connected with the top cover (1) and the outer spherical cover support (3), the outer spherical cover support (3) is fixedly connected with the upper spherical cover (4), and the waterproof connector (5) is fixedly connected with the outer spherical cover support (3) and the upper spherical cover (4). The waterproof speed dome camera has the advantages that the waterproof connector is fixedly connected with the upper spherical cover and the outer spherical cover support, and therefore the waterproof connector is convenient and rapid to assemble and adjust and better in sealing performance.