The invention provides a mobile slurry container. The mobile slurry container comprises a bottom plate and four side plates; the bottom plate and the four side plates are connected through a detachable connection device; and the detachable connection device comprises a magnetic device which is located at the connection edges of the slurry container formed by connecting the bottom plate and the four side plates. According to the mobile slurry container, the maneuverability of a slurry system can be improved, pollution is reduced, and damage to the soil texture of the construction site is reduced.