The invention discloses a cardiac surgery myocardial cardiopelgia synchronous perfusion and pressure monitoring and adjusting device. The device comprises two perfusion branches, a liquid supply pipe,a shunt detection meter and a second infusion pipe, the two perfusion branches are rotationally arranged on the shunt detection meter; an elastic telescopic pipe and a dial plate provided with a pointer and scales are arranged in the shunting detection meter; a first infusion pipe is arranged in the infusion head on each infusion branch, one end of the second infusion pipe is in butt joint with the first infusion tube, the other end of the second infusion pipe is connected to a third infusion pipe in the shunt detection meter, one end of the elastic telescopic pipe is connected to the secondinfusion pipe, and the other end of the elastic telescopic pipe is closed and extends to the free end of the pointer. The device is simple in structure and convenient to use, synchronous and uniform perfusion of coronary artery on two sides can be realized, coronary artery blockage can be detected in the perfusion process, the device is self-inspected to find out whether a pipeline of the device is blocked or not, whether the device performs uniform perfusion or not is effectively found out in time, and insufficient perfusion and excess perfusion are avoided.