OPTICAL MODULE HOUSING AND OPTICAL MODULE

An optical module housing (10) and an optical module. The housing (10) comprises a first housing (11) and a second housing (12); the first housing (11) comprises a first bottom plate (111) and sidewalls (112) on two sides thereof; the second housing (12) comprises a second bottom plate (121) and a heat dissipation structure (122); the heat dissipation structure (122) comprises two sheet-like ribs (122a) on two sides of the second bottom plate (121) and extending in the length direction of the housing (10); the second housing (12) is covered on the first housing (11); the first bottom plate (111), the sidewalls (112) on the two sides of the first bottom (111), and the second bottom plate (12) form a cavity (14); and the sheet-like ribs (122a) on the two sides of the second bottom plate (121) are at least partially attached to one side of each of the sidewalls (112), such that the sheet-like ribs (122a) are in thermal conductive connection to the side surfaces of the sidewalls (112). The position of a boundary