A business plan is a summary of how a business or entrepreneur intends to organize an entrepreneurial endeavor and implement activities necessary and sufficient for the venture to succeed. It is a written explanation of the company's business model for the venture in question. Business plans are developed for ventures in both business and government.

Business plans are used internally for management and planning and are also used to convince outsiders such as banks or venture capitalists to invest money into a venture.

Business plans are noted for often quickly becoming out of date. One common belief within business circles is that the actual plan may have little value, but what is more important is the process of planning, through which the manager gains a greater understanding of the business and of the options available.

Business plan is prepared for customers for they need to know whether the product serves the purpose or not and the utility of the product, for government because it is necessary to know for government whether the legal economical and subsidy concerns are met or the like.

商业计划书是如何一个企业或企业家打算组织一个企业家的努力和开展活动必要和足够的创业成功总结。这是该公司的商业模式有问题的企业书面解释。制定商业计划是在商业和国家企业。

商业计划是用于内部管理和规划，也是用来说服，例如银行或投资于风险投资创业资金的局外人。

商业计划是闻名往往很快成为过时。 商界内的一个共同的信念是，实际计划可能没有什么价值，但更重要的是规划过程中，通过它获得了一个经理的业务和可供选择的了解。

商业计划是为客户提供他们需要知道该产品是否符合政府的目的或不和产品的效用，因为它是需要为政府是否知道经济和法律问题均达到或补贴等。