Fixing support of portable laptop

The invention provides a fixing support of a portable laptop to solve the problem that a user cannot conveniently use the portable laptop during the moving process. The fixing support provided by the invention comprises a tray structure, a cover plate structure and two strap structures, wherein an accommodating groove matched with the portable laptop in shape is formed in the tray structure; the cover plate structure is connected with the tray structure and can cover the accommodating groove to form a sealed cavity; the two strap structures are arranged on the two opposite sides of the tray structure; and the two ends of each strap structure are fixed on the side edge of the tray structure. According to the fixing support of the portable laptop provided by the embodiment of the invention, a movable supporting platform is provided for laptop users, the labor burden of the user can be reduced, and the user can use two hands to operate the laptop in a comfortable idiomatic manner.