Family contracted land system is the basic mode of China’s agricultural production and operation mode，however，with the development of economy and society，relatively simple family contracted land system can not satisfy the development of agricultural productivity，new-style agricultural business modes，such as “order agriculture” business mode driven by leading enterprise，cooperative production business mode driven by specific cooperation organizations，big planting and feeding businessmen production mode，family farm business mode and so on，gradually develop. Currently，in southwest mountainous areas，because of specific agricultural production condition，“company plus site （cooperative） plus agricultural family” mode realizes the win-win between the enterprise and agricultural families，but their deficiencies make it develop slowly，so that industrialized agricultural production business mode is emerged.“Cooperative plus agricultural families” business mode has obvious performance but fewer succeed. Big family business mode develops slowly because it is restricted by small scale，so a few advanced specific planting and feeding families begin to develop toward multiple family business modes. The development and cultivation of agricultural production business modes in southwest mountainous areas should innovate ideas，give priority to cultivating and developing big family business mode and family farm mode while guiding standard and healthy development of other production business modes，therefore，China should accelerate cultivation of new-style agricultural business main bodies，increase the investment in them，develop specific organizations of agricultural science and technology service，and establish new-style agricultural technology service system.