The invention discloses a chia seed suspended particle beverage, which comprises the following components according to mass percentage: 0.1%-0.5% of chia seeds, 0.01%-0.05% of suspending agent, 0.02%-0.1% of gel enhancer, lemon Acid 0.02%~0.1%, sodium citrate 0.01%~0.05%, kumquat lemon 0.01%~0.04%, sweetener 5%~10%, balance is water, the total amount of the above components is 100%; the present invention Also disclosed is a preparation method of the chia seed suspended particle beverage, comprising the following steps: pretreatment of the chia seed, weighing, preparing a batching liquid, filling, sterilizing, and cooling. The invention uses chia seeds as raw materials, selects microbial edible gelatin, utilizes the gel three-dimensional network structure formed by its gelling ability to suspend particles, and prepares a natural suspended particle beverage with a shelf life of up to 6 months. The food particles floating in the invention are real, intuitive, nutritious and taste good, and are oriented to various consumer groups.