The invention relates to a mini-truck suitable for round steel pipe transport. The mini-truck comprises a carriage, a cab, a rubber protection box, multiple first rubber protection pads, two protection carrying boxes arranged at the front end and the rear end of steel pipes and carrying seat components corresponding to the protection carrying boxes. Multiple insertion holes opposite to the steel pipes are evenly embedded in the protection carrying boxes, and the protection carrying boxes are supported on the carriage through the carrying seat components; and a hanging ring is fixed to each protection carrying box. First protection pad bodies and first buffer strips are used for protecting the short steel pipes placed in the carriage in the transport process; and the front end and the rearend of the steel pipes are sleeved with the two protection carrying boxes, the two protection carrying boxes are fixed to the carriage through the carrying seat components, so that the steel pipes arefixed, and the situation that the steel pipes move forwards and backwards so as to be separated and a safety accident happens in the transport process is avoided.