Completeness of the product for a supermarket is an important factor to attract consumers. The more complete a supermarket then increasingly meet the needs and desires of consumers. In addition to a range of products, service facilities are good supermarkets, convenience goods set of goods and services as a whole are the considerations that affect the level of consumer's decision to buy in a supermarket. Attitudes were polite and friendly saleswoman is a form of service expected by consumers. The problems of this study are: (1) Is the product completeness influence on purchase decisions in Alfamart? (2) What is the ministry influence on purchase decisions in Alfamart? (3) Is the range of products and services influence simultaneously? The purpose of this study was to determine the effect range of products and services to the purchasing decision in Alfamart. The population in this study is the customer who visited the Territory Pedurungan Alfamart in Semarang and samples taken as many as 115 respondents. Variables used in this research is a range of products, services and purchasing decisions. Data were collected by questionnaire method using interval scale with method accidental sampling technique. The data obtained were analyzed using multiple regression analysis. The results showed using t-test values obtained tcount of 5.288 with a p-value (0.000