This chapter explains the echocardiography of myocardial perfusion. Contrast echo­cardiography (CE), high-power ultrasound, myocardial perfusion, patchy pattern, quantitative analysis, myocardial blood flow (MBF), monoexponential function, acute coronary syndromes, assessment of myocardial viability, chronic coronary artery disease are described in detail. 6 comprehensive and self-explanatory images are included in this chapter. And 27 references are given at the end of the chapter to facilitate further reading.