The invention provides a method for quickly displaying a waveform search result and an oscilloscope. The method comprises a step of compressing searched waveform data to pixels of a display screen and setting a mark on a pixel where a search event occurs, a step of storing mark data in a first storage area and then transferring the mark data to a second storage area, and a step of reading the mark data in the second storage area and combining the mark data, two-dimensional waveform data in a waveform mapping unit and a menu drawn by a CPU, and displaying a mark symbol at a position where the mark is provided. According to the method, the position compression and display are used while the waveform search result is displayed, the search of a waveform and the mapping and displaying of the search result on a screen are completed while the data is mapped, the involvement of the CPU is not needed, a real-time processing effect is achieved, thus the mark can be corresponding to the waveform, a compression algorithm is used to process a large amount of data in real time, the space storage requirement is reduced, the number of events is limited after position compression process, and all the search events can be displayed on the screen.