The objectives of this paper are to study the characteristics of heat transfer and pressure drop of the zigzag channel PCHE using diffusion bonding technology by numerical analysis. PCHE of five types are designed, which are zigzag channel angle 180$^{circ}$, 160$^{circ}$, 140$^{circ}$, 120$^{circ}$ and 100$^{circ}$. The zigzag PCHE was numerically investigated for Reynolds number in a range of 150$sim$800. The temperatures of the hot side were performed at 80$^{circ}$ while that of the cold side was conducted at 20$^{circ}C$. The results show that the performance of heat transfer rate for zigzag channel 100$^{circ}$ increases about 11.5% compared to that of zigzag channel 180$^{circ}$. On the other hand, the performance of pressure drop for zigzag channel 100$^{circ}$ is remarkably higher than that of zigzag channel 180$^{circ}$, about 2.4 times.