To solve a problem that since pressure at an upper portion of a piston will drop instantaneously at the moment when a pilot valve is opened and closed, a large pressure difference is formed between the upper and lower sides of the piston to drive the piston to move, which results in a strong impact between a piston stopping member and the piston, and therefore, the life span of a product and the operating stability of a refrigeration system will be affected.

A flow path switch control device 100 includes a fluid inlet 101, a fluid outlet 102, a valve device 103 arranged between the fluid inlet 101 and the fluid outlet 102, and a pressure balancing control circuit 104. An adjusting device 105 is further provided in the pressure balancing control circuit 104 to reduce a pressure change in fluid passing through the pressure balancing control circuit 104 when the flow path switch control device 100 is opened/closed, which enables the flow path switch control device 100 to be stable during the process of valve opening or closing, and thus avoid the problem of strong vibration and noise occurred at the moment of operation under large pressure difference.