土兵是以耕种土司占有的兵田为生、以向土司服兵役换取田地耕种权并依附于土司的农奴。可按地域、民族和职任划分为不同类型。乌江流域土兵具有数量的随意性、产生的家族性、训练的纪律性、征调的频繁性等特点。土兵具有平叛、抗倭、保境安民、援辽、“征贼”及参与仇杀等作用。 The soldier was a soldier who took possession of a chieftain for a living, in order to make military service to the chieftain in exchange for farming rights and to attach to the chieftain’s serfs. Can be divided into different types by region, nation and post. The Wujiang River Basin soldiers have a number of arbitrariness, resulting in familial, disciplinary training, the frequency of such characteristics. Soldiers with counter-insurgency, anti-Japanese, security environment Min, aid Liao, “sign thief ” and participate in vendetta and other roles.