The invention discloses a double-channel detecting card for simultaneously detecting carbamazepine and sodium valproate. The double-channel detecting card comprises a first shell and a second shell, wherein the first shell and the second shell have cavity structures; the first shell is hinged to the second shell; sampling openings and displaying windows are respectively formed in the top end of the first shell and the top end of the second shell; a carbamazepine detecting plate is arranged on the inner wall of the bottom end of the first shell; a sodium valproate detecting plate is arranged on the inner wall of the bottom end of the second shell; detecting lines and control lines are arranged on the carbamazepine detecting plate and the sodium valproate detecting plate; flow guide plates and absorbing plates are respectively arranged in the first shell and the second shell; a first handle and a second handle are respectively arranged on one side, which is close to the sampling opening, of the first shell and one side, which is close to the sampling opening, of the second shell correspondingly; slots are respectively formed in one sides, which are close to each other, of the first handle and the second handle; and a rotating ball is arranged in each slot. The double-channel detecting card is reasonable in design and is convenient to hold, pack and carry; and detecting efficiency and quality are improved.