Camping or what is commonly called camping is an activity that is carried out outside the room. This activity usually requires some equipment such as a carriel, tent, gas cylinder, stove, mattress, salamon jacket, and several other equipment. AM Camping is a shop that sells equipment camping. AM Camping has quite a lot of sales transaction activities. Sales transaction data can be used and processed into useful information to increase sales of equipment at AM Camping stores. The problem that often occurs in AM Camping stores is that the camping equipment needed by consumers does not exist or is out of stock because the owner does not pay attention to the camping equipment stock. To solve this problem, the authors use association datamining with a priori algorithm. Based on these results, it can be obtained that there are 8 rules that meet a minimum confidence of 50%, but because of the same itemset, only one rule is chosen so that the results of the itemset rules are 5 final rules, namely if you buy a 60 L Carrier, then 94% most likely buy a Gas Cylinder, if you buy a flat stove, you are 89% most likely to buy a gas cylinder, if you buy a frem rope, then you have an 84% chance of buying a gas cylinder, if you buy a cuff, you are 73% most likely to buy a gas cylinder and if you buy a gas cylinder you are 67% likely to buy a rope frem. With this research, it is hoped that it can provide information to AM Camping shop owners in providing stock of camping equipment needed by consumers and to find out the combination of itemset from consumer purchases