To provide a cap with a comb which is provided with a functional portion for strongly connecting a comb tooth body and a handle cylinder body in addition to a communication portion between the comb tooth body and the handle cylinder body, with which strong and stable assembly between the comb tooth body and the handle cylinder body is safely maintained, and which prevents functional deterioration of the communication portion between the comb tooth body and the handle cylinder body.

A fitting cylinder piece 8 and a fitting circumferential groove 17 are combined to achieve and maintain a flow path connection between the comb tooth body 2 and the handle cylinder body 12 as the main part of the cap 1 with a comb. Both side surface walls 18 of the handle cylinder body 12 which are positioned on both sides of the combination are formed with locking/assembling parts for assembling the comb tooth body 2 and the handle cylinder body 12 to each other, and the comb tooth body 2 and the handle cylinder body 12 are assembled strongly and stably.