The invention discloses a crack-type leakage-proof quantitative
visible surface sampling culture dish adopting a grid counting method. The culture dish comprises a dish bottom and a dish cover; a transverse crack and a longitudinal crack formed in a first dish bottom side wall can be cracked when the stress is exerted, so that a movable dish bottom side wall is broken away from the culture dish, and the height of the first dish bottom side wall is lower than the plane of a
solid medium, and therefore, an operation of surface microorganisms sampling is performed more simply and more conveniently. Additionally, a second dish bottom side wall can be used for preventing the medium from overflowing from the dish bottom, minute bacterial colonies can be observed more conveniently through an observation window, scale marks can be used for indicating the pouring volume of an
agar medium, and a counting process of the bacterial colonies can be simplified by grid lines.