The invention relates to an X-shaped-folding tricycle capable of being turned by swinging a handlebar. The tricycle comprises a frame I, a frame II, a folder, a turning shaft, a saddle, a positioning clamp, a front wheel, two rear wheels and a driving mechanism; the folder comprises a lower blade, an upper blade, a lock hook, a lock hook spring and a positioning bolt; the frame I is formed by welding an inclined strut tube, a connecting tube, a seat tube, a five-way tube and a front fork, the lower blade is welded to the frame I, the front wheel is installed on the front fork, and the saddle is installed in the seat tube; the frame II is formed by welding a U-shaped elbow, a drum, the handlebar, an upper connecting piece, a left lug piece and a right lug piece, the upper blade is welded to the frame II, two bearings are inlaid in the drum, the upper connecting piece is connected with the positioning clamp, and the lower blade and the upper blade are rotationally connected with the lock hook; the turning shaft is formed by welding a rear axle and a turning base, a left tension spring and a right tension spring are connected with the two edges of the turning base respectively and connected with the left lug piece and the right lug piece respectively, the rear wheels are installed at the two ends of the rear axle respectively, and the driving mechanism is composed of a center shaft, cranks, a chain wheel, pedals, a flywheel and a chain.