Advertising screen shell structure and outdoor advertising screen

The utility model discloses an advertisement screen shell structure and an outdoor advertisement screen, the advertisement screen shell structure comprises a shell body, a first surface of the shell body is used for installing a flat panel display screen, a plurality of installation supports are arranged in the shell body, and the installation supports are used for installing and fixing function modules matched with the flat panel display screen; a first preset gap is formed between every two adjacent mounting brackets, and a second preset gap is formed between each mounting bracket and the inner wall of the shell body; a fan assembly is further arranged in the shell body, ventilation holes are formed in the side portion of the shell body, and the fan assembly is used for driving gas in the shell body to flow through the ventilation holes. According to the outdoor advertising screen, effective heat dissipation can be achieved, and the situation that internal equipment is damaged due to the fact that the inter