Multifunctional writing pen and LED illuminator

The utility model provides a sleeve type writing pen with a touch control head and an illuminator, and an LED illuminator of the writing pen. The writing pen is formed by a pen body (15) and a metal pen sleeve (16), wherein the upper end part of a sleeve cavity (17) of the metal pen sleeve is provided with a transparent pipe (18); the top end of the metal pen sleeve (16) is provided with a touch control head (19); the pen body (15) is formed by a writing end having a writing pen head (20) on the top end of the writing pen, and an illuminating end having an LED illuminating head on the top of the illuminating end; the writing end and the illuminating end are spaced via an intermediate raised ring (23) and can be both tightly inserted into the sleeve cavity (17) of the metal pen sleeve (16); a pen cartridge (24) is disposed in the writing end; and an LED illuminator (1) is disposed in the illuminating end. Various functions, such as writing, touch control screen inputting and illuminating viewing are integrated; and the multifunctional writing pen and LED illuminator have compact and rational structure, smart design and convenient use.