A container floor assembly, comprising a floor unit , a blocking member and a limiting member , wherein the blocking member is supported on the floor unit , and the limiting member detachably connects the blocking member and the floor unit together in a manner of restricting a relative lateral movement of the blocking member and the floor unit , wherein the blocking member includes a blocking portion and a connection portion , the blocking portion is angularly connected to the connection portion such that both the blocking portion and the connection portion are plates at a right angle, and a reinforcement rib plate is fixed between the blocking portion and the connection portion and the connection portion is supported on the floor unit , and the limiting member forms a lateral limit to the connection portion , characterised in that the floor unit comprises a floor body and a floor chassis , the floor body is mounted on the floor chassis , and the blocking member is supported on the floor body ; wherein the floor body is provided with a first insertion hole , the floor chassis is provided with a second insertion hole , the first insertion hole and the second insertion hole are coaxial, the second insertion hole constitutes a limiting hole of the floor unit , or the first insertion hole and the second insertion hole are combined to form the limiting hole of the floor unit , the limiting member is detachable and provided through the first insertion hole and the second insertion hole , and the limiting hole of the floor unit constitutes the limiting structure which forms a lateral limiting to the limiting member , wherein the floor chassis comprises a plurality of spaced bottom beams ; and at least one connection member , wherein the connection member is connected between two adjacent bottom beams , a protrusion member protrudes from the connection member toward the floor body , the second insertion hole is provided in the protrusion member , and a bottom end of the limiting member abuts against a hole bottom of the second insertion hole . wherein the blocking member includes a blocking portion and a connection portion , the blocking portion is angularly connected to the connection portion such that both the blocking portion and the connection portion are plates at a right angle, and a reinforcement rib plate is fixed between the blocking portion and the connection portion and the connection portion is supported on the floor unit , and the limiting member forms a lateral limit to the connection portion , characterised in that the floor unit comprises a floor body and a floor chassis , the floor body is mounted on the floor chassis , and the blocking member is supported on the floor body ; wherein the floor body is provided with a first insertion hole , the floor chassis is provided with a second insertion hole , the first insertion hole and the second insertion hole are coaxial, the second insertion hole constitutes a limiting hole of the floor unit , or the first insertion hole and the second insertion hole are combined to form the limiting hole of the floor unit , the limiting member is detachable and provided through the first insertion hole and the second insertion hole , and the limiting hole of the floor unit constitutes the limiting structure which forms a lateral limiting to the limiting member , wherein the floor chassis comprises a plurality of spaced bottom beams ; and at least one connection member , wherein the connection member is connected between two adjacent bottom beams , a protrusion member protrudes from the connection member toward the floor body , the second insertion hole is provided in the protrusion member , and a bottom end of the limiting member abuts against a hole bottom of the second insertion hole . <EOS>