Occupation of individual industrial and commercial households is filled in according to the actual business industry, such as retail, catering and so on. Individual industrial and commercial households are small business entities that have the ability to operate and are approved by the relevant government departments in accordance with the Individual Industrial and Commercial Household Regulations, and are engaged in business activities on an individual or family basis, with personal or family property as the main object of business. According to the business industry to fill in the occupation can more accurately describe the nature of the business and industry characteristics of individual business households.