A method for linking between a first information communication device and a second information communication device in wireless communication, the method comprising: transmitting, by the first information communication device, information for use for a connection of wireless communication, the information being of the first information communication device executing any one of a station function and an access point function of wireless communication, to the second information communication device executing the other function at request of the second information communication device to transmit the information, storing, by the second information communication device, a received information on a storage of the second information communication device when receiving the transmitted information, requesting, by the first information communication device, the second information communication device to transmit the information when receiving a notification of receipt of the transmitted information from the second information communication device, and storing, by the first information communication device, the received information on a storage of the first information communication device when receiving the information of the second information communication device as a response to the request to transmit the information, characterized in that the information for a connection of wireless communication is a Service Set Identifier, SSID, for connection operation which includes an SSID for normal operation, an operation mode, a presence or an absence of passkey which is a password for authentication, and an identifier of a device which executes the access point function. transmitting, by the first information communication device, information for use for a connection of wireless communication, the information being of the first information communication device executing any one of a station function and an access point function of wireless communication, to the second information communication device executing the other function at request of the second information communication device to transmit the information, storing, by the second information communication device, a received information on a storage of the second information communication device when receiving the transmitted information, requesting, by the first information communication device, the second information communication device to transmit the information when receiving a notification of receipt of the transmitted information from the second information communication device, and storing, by the first information communication device, the received information on a storage of the first information communication device when receiving the information of the second information communication device as a response to the request to transmit the information, characterized in that the information for a connection of wireless communication is a Service Set Identifier, SSID, for connection operation which includes an SSID for normal operation, an operation mode, a presence or an absence of passkey which is a password for authentication, and an identifier of a device which executes the access point function.