The utility model discloses a soft starting switch for electric tools, which comprises two sets of contacts, wherein, the spacing of the second set of contacts is larger than the spacing of the first set of contacts; negative temperature coefficient resistors are connected in series between the two sets of contacts; the spacing of the first set of contacts is 3 mm, and the spacing of the second set of contacts is 9 mm. The switch can limit starting current, and accord with the requirements that starting current is small, and the electric network effect is small.