Provided is a liquid-absorbing wick for heating transpiration, which can be used for transpiration of a chemical liquid including a pyrethroid-based insecticidal component having a relatively high vapor pressure. The liquid-absorbing wick for heating transpiration is capable not only of providing stable transpiration ability and a superior insecticidal effect while being used and preventing chemical liquid leakage due to an increase in the internal pressure of a chemical liquid container and chemical liquid leakage due to tipping of the chemical liquid container, but also of maintaining the transpiration ability of the liquid-absorbing wick even after a predetermined period of time has elapsed after production. The liquid-absorbing wick for heating transpiration is for transpiration of a chemical liquid including the pyrethroid-based insecticidal component having a vapor pressure of 2×10-4 to 1×10-2 mmHg at 30ºC, wherein inorganic powder, an inorganic binder, and an organic substance are contained as raw materials, and, in the raw materials, the ratio (W1/W2) of the total weight (W1) of the inorganic powder and the inorganic binder to the weight (W2) of the organic substance is set to 4.0-10.Linvention concerne une mèche absorbant les liquides destinée à chauffer la transpiration, qui peut être utilisée pour une transpiration dun liquide chimique comprenant un composant insecticide à base de pyréthroïde possédant une pression de vapeur relativement élevée. La mèche absorbant les liquides destinée à chauffer la transpiration peut non seulement fournir une capacité stable de transpiration et un excellent effet insecticide tout en étant utilisée et en empêchant une fuite de liquide en raison dune augmentation de la pression interne dun récipient de liquide chimique et une fuite de liquide chimique due à linclinaison du récipient de liquide chimique, mais également maintenir la capacité de transpiration de la mèche absorbant les liquides, même après quune période de tem
