The utility model provides a container underframe and a container for loading liquid containing vessels. The container underframe and the container can solve the problem that liquid which leaks from the liquid containing vessels in the existing container cannot be collected and are apt to be spilt outside. The container underframe comprises a lower bottom plate, bottom side beams on two sides, end thresholds at two ends, a plurality of bottom transverse beams and a plurality of load bearing floors, wherein the load bearing floors consist of a plurality of grid floors. A chamber which is formed by the bottom side beams on the two sides, the end thresholds at the two ends and the lower bottom plate is used as a liquid storage tank. The liquid storage tank is communicated with a cargo storage space of the container through gaps among the grid floors. The liquid which leaks out of the vessels loaded in the cargo storage space of the container can be enabled to flow into the liquid storage tank formed by the structure of the container underframe, and can be drained at proper time.