A urethral catheter with an anti-infection structure for infants, comprising: a urine storage bag configured to store urine, a hose being connected to one end of the urine storage bag; a urethral insertion pipe inserted into the urethra of a patient to guide and discharge urine to the urine storage bag; a reinforcement rod being inserted into the urethral insertion pipe to allow the urethral insertion pipe to be easily inserted into the urethra of the patient; the reinforcement rod being then released from the urethral insertion pipe; and a double Y-shaped connection pipe formed at the rear end of the urethral insertion pipe and including a main pipe connected to the hose, a branch pipe connected to a water injector, or a balloon expander, to expand a balloon provided at the front end of the urethral insertion pipe and a reinforcement rod inflow and outflow pipe to insert and release the reinforcement rod into and from the urethral insertion pipe, wherein: the reinforcement rod is released from the urethral insertion pipe through the reinforcement rod inflow and outflow pipe under the condition that the hose is combined integrally with the main pipe, so as to prevent leakage of urine; and the reinforcement rod inflow and outflow pipe includes a check valve provided therein to prevent leakage of urine through an inlet when the reinforcement rod is released from the urethral insertion pipe; the entirety or a part of the inlet is in the stenosed state at all times and thus, when the reinforcement rod is inserted into the urethral insertion pipe, the reinforcement rod is inserted into the urethral insertion pipe while opening the inlet, and when the reinforcement rod is released from the urethral insertion pipe, the inlet is closed so that urine does not open the inlet so as not to leak to the outside. a urine storage bag configured to store urine, a hose being connected to one end of the urine storage bag; a urethral insertion pipe inserted into the urethra of a patient to guide and discharge urine to the urine storage bag; a reinforcement rod being inserted into the urethral insertion pipe to allow the urethral insertion pipe to be easily inserted into the urethra of the patient; the reinforcement rod being then released from the urethral insertion pipe; and a double Y-shaped connection pipe formed at the rear end of the urethral insertion pipe and including a main pipe connected to the hose, a branch pipe connected to a water injector, or a balloon expander, to expand a balloon provided at the front end of the urethral insertion pipe and a reinforcement rod inflow and outflow pipe to insert and release the reinforcement rod into and from the urethral insertion pipe, wherein: the reinforcement rod is released from the urethral insertion pipe through the reinforcement rod inflow and outflow pipe under the condition that the hose is combined integrally with the main pipe, so as to prevent leakage of urine; and the reinforcement rod inflow and outflow pipe includes a check valve provided therein to prevent leakage of urine through an inlet when the reinforcement rod is released from the urethral insertion pipe; the entirety or a part of the inlet is in the stenosed state at all times and thus, when the reinforcement rod is inserted into the urethral insertion pipe, the reinforcement rod is inserted into the urethral insertion pipe while opening the inlet, and when the reinforcement rod is released from the urethral insertion pipe, the inlet is closed so that urine does not open the inlet so as not to leak to the outside. the reinforcement rod is released from the urethral insertion pipe through the reinforcement rod inflow and outflow pipe under the condition that the hose is combined integrally with the main pipe, so as to prevent leakage of urine; and the reinforcement rod inflow and outflow pipe includes a check valve provided therein to prevent leakage of urine through an inlet when the reinforcement rod is released from the urethral insertion pipe; the entirety or a part of the inlet is in the stenosed state at all times and thus, when the reinforcement rod is inserted into the urethral insertion pipe, the reinforcement rod is inserted into the urethral insertion pipe while opening the inlet, and when the reinforcement rod is released from the urethral insertion pipe, the inlet is closed so that urine does not open the inlet so as not to leak to the outside.