Cover body assembly and outdoor energy storage device

The utility model relates to a cover body assembly and an outdoor energy storage device. A cover body assembly is used for an outdoor energy storage device, the cover body assembly comprises a cover body and a sealing piece, a mounting hole is formed in the cover body, the mounting hole is used for detachably mounting an operation key, an annular first limiting part is further arranged on the inner surface of the cover body in a protruding mode, and the first limiting part is arranged around the mounting hole; the sealing piece comprises a first sealing part and a second sealing part which are connected with each other, the second sealing part is located in the first sealing part, a groove is formed between the first sealing part and the second sealing part, the first sealing part is annular, and the sealing piece is installed on the cover body through the inserting fit of the groove and the first limiting part. Through the arrangement, the operation key is convenient to maintain and replace, the sealing elem