The invention discloses a three-wheel T-shaped hand trailer. The hand trailer includes a cross rod and a vertical rod which are connected in a T shape, the two ends of the cross rod are connected withwheels, the vertical rod is sleeved with a support pipe, the head portion of the support pipe is provided with a connection ball, and the support pipe is provided with several penetrating radial positioning holes in the axial direction, and the vertical rod is provided with more than one radial-direction positioning through holes; stop pins penetrate through the positioning through holes in the support pipe and the vertical rod at the same time, the cross rod is connected with a diagonal draw bar, the diagonal draw bar and the cross rod are connected in T shape, and the inclined angle betweenthe diagonal draw bar and the vertical rod is an acute angle; a connection plate is connected between the diagonal draw bar and the vertical rod; the two sides of the tail end of the diagonal draw bar are provided with handles respectively. The hand trailer is characterized in that the back surface of the diagonal draw bar is provided with a universal wheel. By arranging the universal wheel on the back surface of the diagonal draw bar, when the hand trailer is in use, the gravity of the hand trailer does not move, and the hand trailer is convenient to use and saves labor. Meanwhile, the versatility of the hand trailer is improved by adjusting the height of a connecting ball.