The invention discloses a lithium battery trickle charge protection circuit and a soft start device. The lithium battery trickle charge protection circuit includes a charge power source interface, a charge circuit unit, a lithium battery, a voltage stabilizer and a trickle charge protection circuit unit. The trickle charge protection circuit unit includes a reference voltage generating circuit subunit, a PNP triode, an NPN triode, a first resistor and a second resistor. The input terminal of the reference voltage generating circuit sub unit is connected with the charge power source interfacewhile the output terminal is connected with an emitting electrode of the PNP triode. A base electrode of the PNP triode is connected with the positive electrode of the lithium battery. A collector ofthe PNP triode is connected with the first terminal of the first resistor and the base electrode of the NPN triode. The second terminal of the first resistor and the emitting electrode of the NPN triode are in grounded connection. A collector of the NPP triode is connected with an enabling terminal of the voltage stabilizer. The enabling terminal of the voltage stabilizer is also connected with the positive electrode of the lithium battery via the second resistor. The circuit provided by the invention has advantages of low cost, simple structure and easy implementation.