In 1998, three Cambridge graduates sold their first innocent smoothie at a small music festival. After 15 years of development, innocent has grown into an international brand, which achieved a turnover of £209 million in 2012 and become the largest smoothie brand in Europe (Innocent, 2013a). In 2013, Coca Cola increased its stake in Innocent from 58% to over 90%, since then Innocent has entered a new field. From a small stall to an international company, Innocent has never stopped developing its marketing strategy and has achieved dramatic improvement. However, in some ways, potential downsides remain innocent. Palmer (2004: 18-23) divided the marketing mix into 7 elements: product, price, place, promotion, people, process and physical evidence. The aim of this case study is to analyze its marketing strategy based on 4 elements: product, price, place and promotion. It's then a matter of comparing and contrasting the innocents and their competitors. Finally, we will conclude the marketing strategy of innocent and find out some feasibility measures. Based on the three-level analysis of product supply (Palmer, 2004: 253-254), the product of innocent mainly belongs to the basic level and the secondary level. The basic product provided by Innocent is their drink and food. The company has been constantly providing new products to its customers. Over the past 15 years, they have sold a total of 9 types of products in the market: smoothies, juices, extra juice smoothies, children's smoothies, children's juices, children's fruit water, noodle pots, vegetable pots and tubes fruit (Innocent, 2013b). In all these products, smoothies are the flagship product of the innocent. However, it is already in the saturation phase of the product life cycle. Many competitors sold similar products to capture markets. For example, the Spanish juice brand launched liter smoothies to challenge an innocent position in a year and a half.