This creation is about a constant temperature comfortable pet bag,It contains a main body,It is a main body,It is a pet bag,It has an opening,And there is a accommodation space in the opening,And the bottom surface of one of the accommodation spaces and the wall surfaces on both sides are respectively provided with a plurality of first fixed structures；And a plurality of thermostatic linings,The utility model is a sheet structure with the shape corresponding to the bottom surface and both sides of the accommodation space of the main body,And the constant temperature lining can keep warm when the temperature is low and can dissipate heat when the temperature is high,And two sides of the thermostatic lining sheet are respectively provided with a second fixed structure corresponding to the first fixed structure,And can be detachably fixed on the bottom surface and both sides of the main body.本創作係有關於一種恆溫舒適寵物提包，其包含一主體，其係為一主體，其係為一寵物提包，其具有一開口，且於開口內具有一容納空間，而其中該容納空間之一底面及兩側壁面上分別設有複數之第一固定結構；及複數之恆溫內襯片，其為外型對應該主體之容納空間內之底面及兩側壁面之片狀結構，且該恆溫內襯片氣溫低時可保暖及氣溫高時可散熱，且其中該恆溫內襯片之兩面上分別設有對應於該第一固定結構之第二固定結構，進而可拆卸地固定於該主體之底面及兩側壁面。
