Abstract: The basic characteristics of Coreidae are provided and a detail comparative morphological study about the coreid tribed(or subfamily) is given in the present paper,including the aspects of head,thorax,abdomen,legs,wings,metathoracic scent gland,especially the male and female genitalia and the adjacent structures spermatheca,etc.116 figures are appended.The tribes Acanthocorini,Anisoscelidini,Cloresmini,Colpurinae,Daladerini,Homoeocerini,Petascelidini and the American groups are proved as monophyletic groups respectively,and the tribe Anhomoeini,including only one genus,is proved a good tribe;It is uncertain whether the tribe Coreini is a monophyletic group,or not and the phylogenetic positions of the genera in this tribe need more studies;the genera Sinodasynus,Chinadasynus,Dasynus,Dasynopsis and Paradasynus of the tribe Dasynini are very heterogenetic,Dasynini is a paraphyletic group;the tribe Gonocerini is a monophyletic group,but Plinachtus basalis must be excluded from this tribe;Manocoreini,Mecocnemini and Sinotagini includes only one species,the another species,Sinotagus rubromaculus Hsiao,must be transferred into genus Anacanthocoris,because of ite characteristics,I.e.,Anacanthocoris rubromaculus (Hsiao)(n.comb.) includes only one genus respectively,their phylogenetic positions must be studied more;Hydarini(or Hydarinae)is a primitive and peculiar group;tribe Clavigrallini in subfamily Pseudophloeinae is a good tribe,but the systematic positions of the other genera of the subfamily were not certain in the paper,the phylogeny of Pseudophloeinae needs further studies.