Evelyn Lozada has beelined it to court asking for a restraining order against "Basketball Wives" costar OG Chijindu.

Evelyn's filed legal docs asking for a temporary restraining order against OG in light of all their beef over the last few months. A judge has yet to rule on Evelyn's request for a restraining order. Evelyn's been down this road before back in September ... following a meltdown on the show's reunion.

As we first reported ... Evelyn sued OG claiming she's called her a racist bigot on social media ever since Evelyn posted a cryptic message back in September.

OG's allegations came after Evelyn posted on her Instagram story, saying, "Nobody watches you harder than the people that can't stand you." The post included a picture of a laughing orangutan. OG took offense to this and clapped back with a repost of her own that read, "Wow so now black women are monkeys. Everyone boycott this trash box you are disgusting." The post didn't appear to tag or mention anyone.

OG also talked trash on Twitter: "And there it is..show your true colors you racist bigot. You called Cece 'Ling Ling' Jackie a 'cockroach' & now me a 'monkey.'"

Evelyn says the racist labeling is completely uncalled for ... suing for defamation and infliction of emotional distress.