A control valve, comprising: a spool slidably incorporated in a valve housing; a first pilot chamber and a second pilot chamber disposed by facing both ends of the spool; a signal pressure passage formed in the valve housing and configured to lead a pilot pressure of the first pilot chamber or the second pilot chamber to another device other than the control valve as a signal pressure; a communication groove formed in the spool and configured to allow the first pilot chamber and the signal pressure passage to communicate with each other when the spool is at a neutral position; a communication hole formed in the spool and configured to allow the second pilot chamber and the signal pressure passage to communicate with each other; and a check valve interposed in the communication hole and configured to allow only the flow from the second pilot chamber to the signal pressure passage, wherein the communication groove allows the first pilot chamber and the signal pressure passage to communicate with each other when the pilot pressure is led to the first pilot chamber and the spool is moved, while the communication between the first pilot chamber and the signal pressure passage is shut off when the pilot pressure is led to the second pilot chamber and the spool is moved; the check valve comprises: a poppet portion configured to open or close the communication hole; and a spacer portion configured to regulate a movement amount of the poppet portion to an open direction; and the control valve further comprises a movement regulating portion configured to regulate movement of the spacer portion toward the poppet portion; characterized in that in a state where the movement of the spacer portion is regulated by the movement regulating portion and the poppet portion closes the communication hole, a gap is formed between the spacer portion and the poppet portion. a spool slidably incorporated in a valve housing; a first pilot chamber and a second pilot chamber disposed by facing both ends of the spool; a signal pressure passage formed in the valve housing and configured to lead a pilot pressure of the first pilot chamber or the second pilot chamber to another device other than the control valve as a signal pressure; a communication groove formed in the spool and configured to allow the first pilot chamber and the signal pressure passage to communicate with each other when the spool is at a neutral position; a communication hole formed in the spool and configured to allow the second pilot chamber and the signal pressure passage to communicate with each other; and a check valve interposed in the communication hole and configured to allow only the flow from the second pilot chamber to the signal pressure passage, wherein the communication groove allows the first pilot chamber and the signal pressure passage to communicate with each other when the pilot pressure is led to the first pilot chamber and the spool is moved, while the communication between the first pilot chamber and the signal pressure passage is shut off when the pilot pressure is led to the second pilot chamber and the spool is moved; the check valve comprises: a poppet portion configured to open or close the communication hole; and a spacer portion configured to regulate a movement amount of the poppet portion to an open direction; and the control valve further comprises a movement regulating portion configured to regulate movement of the spacer portion toward the poppet portion; characterized in that in a state where the movement of the spacer portion is regulated by the movement regulating portion and the poppet portion closes the communication hole, a gap is formed between the spacer portion and the poppet portion. a poppet portion configured to open or close the communication hole; and a spacer portion configured to regulate a movement amount of the poppet portion to an open direction; and the control valve further comprises a movement regulating portion configured to regulate movement of the spacer portion toward the poppet portion; characterized in that in a state where the movement of the spacer portion is regulated by the movement regulating portion and the poppet portion closes the communication hole, a gap is formed between the spacer portion and the poppet portion.