Model of the emulsified fuel drop micro-explosion is elaborated.The macro-emulsion drop consists of a spherical fuel layer(SFL)which bounds the water vapor bubble.Behavior of this system,which we called fuel globule,differs both from a liquid drop and a gas bubble.In this regard the differential equation of a fuel globule radial motion is derived and key estimations are obtained.The latter show that SFL is influenced by huge inertia forces,caused by acceleration of order 109m/sec2,when 1g of SFL mass is affected by inertia force of 106N/g.This allows formulating hypothesis about possible SFL perforation by the instability mechanism of Rayleigh – Taylor type.The justification is carried out via the analysis of necessary conditions for the instability realization on the basis of calculated regularities of SFL motion.The instability has high probability of performance at external SFL surface at the moment of a globule maximal expansion.The enclosed model of spherical fuel layer perforation is elaborated based on analogy of SFL dynamics and drop breakup at “claviform” mode.At the perforation stage the inertia forces are pulling out the liquid from SFL in outward radial direction in the form of thin stems,making up a “hedgehog” form,and are blowing out thin films at air penetration through SFL in the inward direction.The entire SFL surface is divided by unstable disturbances onto a system of “cells”,each cell consisting of a stem and surrounding air troughs.These cell elements form droplets of different sizes at SFL bursting.The total amount of droplets is defined also by a number of cells,which depends on SFL radius,thickness and disturbance wavelength.The formulae for number and diameters of droplets generated by stem and film are obtained.These quantities are the key ones for calculation of further processes of the homogeneous mixture preparation in the DE combustion chamber.