Due to the imperfection of legislation,there is no clear prescription on the principle of concurrent punishment for different kinds of crimes,which leads to a hated debate on this issue in the theoretical cycle.

This article discusses the following three problems on concurrent punishment for several crimes of mainland China: the justification of the limitative aggravation principle and how to perfect it, how to punish plural crimes of the same kind, the concurrent punishment principles of all kinds of penalties in our country.

Compared with the combined punishment of the deprivation of political rights on other occasions, the combined punishment of the deprivation of political rights to public surveillance has its specific characteristics.

When several deprivations of political rights with certain terms are decided as combined punishment,the principle of limitative aggravation should be applied,that is,his term of punish ment should be not more than the total of the terms for all the crimes but not less than the longest of the terms for th.

But this merged punishment method can not fully and fairly achieve the legislative intent,violating the principle that "anyone can not be penalized for the same crime again",which leads to cumulative punishment extremely cumbersome.

The original application cases should be analyzed with imaginative joiner of offenses or cumulative punishment.

The determination of the scope of plural crimes is the premise of studying cumulative punishment.

How to punish the person who committed several crimes give birth to the system of combined punishment for several crimes.

At present the major problems in practice of combined punishment for several crimess ystem are mainly followed the 5 aspects:1.

With regard to the action of robbing the victim s possessions in the course of kidnapping crime, Because criminal commits two kinds of completely different criminal requisites facts based on different criminal intents, who should adopt combined punishment for kidnapping crime and robbing crime.

By analyzing the status of implicated offense and joinder of punishments for plural crimes in foreign criminal laws,and by discussing the contradiction on principle of combination of "choosing felony and giving severe punishment" and "joinder of punishments for plural crimes",the writer suggests that,based on actual distinguishing.

The bases of joinder of punishments for plural crimes include the requests of punishment s purpose, criminal law, existence of abolished interests and maximum of executing punishment.

Joinder of punishments for plural crimes is a very important issue both in theory of science of criminal law and in judicial practice, while whether plural crimes of a kind should be given concurrent punishments is even more one of the controversial focuses in the field of science of criminal law.