Most recent solutions to the problem of the ethylene detec-tion have been briefly reviewed. Upon to the demand from thehorticultural industry, several types of sensors able to guaranteelow limits of detection with low costs have been developed inthe last years. The availability of a wide range of nanostructuredmaterials, having high surface to volume ratio and easily tunableelectric and mechanical properties, leaded to noticeable progressesin the field of gas sensing in general and of ethylene detection inparticular. Nevertheless, there is still much work to be done todevelop a device which simultaneously satisfies the ideal require-ments of low cost, sensitivity, selectivity, robustness, low powerconsumption and safety, which are fundamental for a wide utiliza-tion in fresh products monitoring.